Proper storage of a 24-hour specimen container is critical for accurate diagnostic results. Whether collecting urine, blood, or other bodily fluids, improper handling can lead to sample degradation, contamination, or false readings. This guide covers step-by-step storage protocols, common mistakes, and regulatory guidelines to ensure your specimens remain viable.

_{Why Proper Storage Matters}

24-hour specimen collection is used for tests like creatinine clearance, hormone levels, or proteinuria. Incorrect storage can:

• Alter chemical compositions (e.g., bacterial growth in urine).

• Evaporate preservatives, rendering samples unusable.

• Violate lab protocols, delaying diagnosis.

_{Step-by-Step Storage Guidelines}

_{1. Temperature Control}

• Refrigeration (2–8°C/35–46°F):
  Most 24-hour urine containers require refrigeration during and after collection.

  • Exception: If preservatives (e.g., hydrochloric acid) are added, follow lab instructions—some may allow room-temperature storage.

• Avoid Freezing: Freezing can rupture cells or alter solute concentrations.

_{2. Light Sensitivity}

• Use Opaque Containers: Light exposure degrades light-sensitive compounds (e.g., urobilinogen in urine).

• Wrap in Aluminum Foil: For transparent containers, shield from direct light.

_{3. Secure Sealing}

• Leak-Proof Lids: Ensure the container is tightly closed to prevent evaporation or contamination.

• Check for Cracks: Discard damaged containers immediately.

_{4. Labeling & Documentation}

• Write Clearly: Include patient name, date/time of collection, and preservatives used.

• Track Time: Note the start and end times of the 24-hour period (e.g., "7:00 AM Jan 1 to 7:00 AM Jan 2").

_{5. Separation from Other Samples}

• Store away from food, chemicals, or other biological specimens to avoid cross-contamination.

_{Common Storage Mistakes to Avoid}

• Leaving Containers Unrefrigerated: Even brief exposure to heat (>25°C/77°F) can breed bacteria.

• Ignoring Preservative Instructions: Adding incorrect preservatives (e.g., bleach) invalidates tests.

• Delivering Late: Submit samples to the lab within 24–48 hours of collection completion.

_{FAQ: 24-Hour Specimen Storage}

Q1: Can I store a urine specimen at room temperature overnight?
No—unless the lab explicitly allows it (e.g., with specific preservatives). Refrigeration prevents bacterial overgrowth.

Q2: What if I miss a collection window?
Restart the 24-hour cycle. Partial collections yield inaccurate results.

Q3: How do I handle preservatives like boric acid?
Wear gloves, add preservatives at the start, and avoid skin contact.

 

In the fast-evolving landscape of laboratory research and biomedical logistics, the demand for reliable, safe, and innovative lab supply manufacturers has never been higher. Laboratories and healthcare institutions worldwide depend on high-quality products to ensure specimen integrity, regulatory compliance, and operational efficiency. As a leader in this critical field, Advance International Corp stands out as a trusted partner for laboratories globally. 

 

Precision Meets Innovation

 

Advance International Corp was established in 2019 and is a supplier focusing on the research and development and production of laboratory consumables and biological consumables in the life science industry. Advance International Corp has served the life science industry for more than ten years and has a team of masters and doctors with rich experience in product development, design, sales and senior R&D experience.

The company also takes advantage of the location of the booming life sciences in Jiangsu, Zhejiang and Shanghai, and combines school-enterprise cooperation to develop biological products that are more suitable for laboratory research. Products are widely used in various research institutes.

 

Advance International Corp has its own R&D center, quality control center, and ERP information processing center, which makes Advance International Corp's products more advantageous in the application market. The R&D center has explored the field of life science consumables for many years and has a new understanding of life science industry products.

It is no longer relies on the imitation of a certain brand in the industry and can independently develop new products suitable for customer applications and be close to applications. With Advance International Corp's more than ten years of experience in the life science industry, the quality control center can independently develop test plans to ensure product performance.

Factory quality control strictly follows the inspection method of 2-hour inspection + re-inspection to check every product leaving the factory. Advance International Corp's ERP information team independently developed a system that meets factory usage requirements and can quickly match materials. It can calculate production delivery dates and automatically schedule to standardize production processes, making all production processes streamlined and standardized.

 

 

Advanced Production Technology: The Backbone of Excellence

 

A superior lab supply manufacturer must leverage cutting-edge technology to meet stringent safety and performance requirements. Advance International Corp integrates the following into its production processes:

Automated Manufacturing Systems: State-of-the-art machinery ensures precision in product dimensions, sealing integrity, and consistency across high-volume orders.

Material Science Expertise: Proprietary polymer blends and absorbent materials are engineered to withstand extreme temperatures, pressure changes, and chemical exposure.

Rigorous Quality Control: Every batch undergoes testing for leak resistance, durability, and compliance with international safety protocols.

Sustainability Initiatives: Eco-friendly materials and energy-efficient processes align with global sustainability goals.

 

Core Products: Engineered for Safety and Reliability

 

Advance International Corp’s product portfolio addresses critical needs in biological specimen transport. Below are its flagship solutions:

 

 

Beyond products, a world-class manufacturer must deliver holistic value:

Customization: Tailored solutions for unique client requirements, including branding, sizing, and material specifications.

Global Compliance: Products pre-certified for international shipping, minimizing regulatory hurdles.

End-to-End Support: Technical consulting, rapid prototyping, and logistics optimization services.

Commitment to R&D: Continuous innovation in biodegradable materials and smart packaging (e.g., IoT-enabled temperature monitoring).

 

Partnering for a Safer Future

In an era where specimen integrity can impact groundbreaking research or life-saving diagnostics, laboratories need manufacturers that blend technical mastery with unwavering accountability. Advance International Corp embodies these principles, offering solutions that safeguard specimens, streamline workflows, and support global health initiatives.

 

For laboratories seeking a partner that prioritizes safety, innovation, and sustainability, Advance International Corp stands as a benchmark for excellence in China’s lab supply manufacturing sector.

Specimens are typically transported in specimen transport bags, often also referred to as biohazard bags when potentially infectious materials are involved. These bags are specifically designed to be leak-proof and durable to ensure the safe and secure transport of medical samples. They often feature a separate pouch for paperwork to avoid contamination of the specimen itself. Many also include absorbent materials to contain any potential leaks. These bags frequently display the biohazard symbol and are often brightly colored (red or orange) for easy identification. Closure mechanisms vary and can include adhesive seals or zip-lock tops. Some specialized bags, like 95 kPa bags, are designed to withstand pressure changes during air transport.

 

The Unsung Hero of Safe Specimen Transport: The ai650 Specimen Bag

In the critical world of medical diagnostics and research, the journey a specimen takes from collection to analysis is just as important as the analysis itself. Ensuring the integrity and safety of these samples during transport is paramount, and that's where specialized solutions like the ai650 specimen bag step in as unsung heroes.

 

The ai650 isn't just any ordinary plastic bag; it's a meticulously engineered transport solution designed with safety and reliability in mind. Specifically, the ai650 is a 95 kPa biohazard specimen transportation bag. This designation highlights a crucial feature: its ability to withstand a pressure differential of at least 95 kilopascals without leakage. This robust design makes it compliant with the stringent regulations set forth by the International Civil Aviation Organization (ICAO) for safely transporting dangerous goods or biohazard materials by air.

 

Think about it – specimens containing potentially infectious substances often need to be sent across cities, states, or even countries for specialized testing. During air travel, the pressure changes significantly, and a standard bag simply wouldn't be able to handle the stress, risking leaks and contamination. The ai650, however, is built to endure these conditions, providing a secure barrier and peace of mind for both the handlers and the integrity of the sample.

 

But the ai650's features go beyond just pressure resistance. These bags often incorporate an absorbent pocket sleeve inside. This ingenious addition serves a dual purpose. First, it can securely hold multiple vials of the specimen, preventing them from shifting and potentially breaking during transit. Second, the absorbent material is designed to soak up any leaks that might occur, further containing the biohazard and preventing the spread of potentially harmful substances. Some ai650 bags can absorb a significant amount of liquid, adding an extra layer of safety.

 

The construction of the ai650 bag itself is also noteworthy. Typically made with a combination of a strong adhesive closure and a continuous seal, these bags offer a liquid-tight environment, crucial for containing potentially hazardous liquids. The materials used are often a durable blend of plastic films, sometimes with a see-through portion to allow for easy identification of the contents without compromising the seal.

 

Furthermore, the ai650 specimen bag can often be customized to meet specific needs. Whether it's a particular size, the inclusion of specific branding, or OEM labeling, manufacturers can tailor these bags to the requirements of different laboratories, hospitals, and research institutions.

 

While it might seem like a simple packaging solution, the ai650 specimen bag is a vital component in the safe and efficient transport of medical and biological samples. Its 95 kPa pressure resistance, combined with features like absorbent sleeves and robust construction, makes it a reliable choice for handling potentially hazardous materials, especially when air transport is involved. The ai650 truly embodies the crucial role of specialized tools in ensuring the safety and integrity of the specimens that are so essential to healthcare and scientific progress.

In today’s fast-paced healthcare environment, laboratories need reliable and efficient solutions for rapid diagnostics. Poclight is proud to introduce our latest micro-sampling solution, designed to meet the demands of precision and speed while addressing the complexities of sample handling. With its unique features, our product is set to revolutionize your testing capabilities.

 

One of the standout attributes of our micro-sampling solution is its precise control over sample volume, requiring only 10μL for testing. This ensures that laboratories can minimize waste while maximizing accuracy, a crucial factor in environments where sample volume is critical. Additionally, the system allows for no washing or separation, streamlining the workflow and reducing the time spent on sample preparation.

 

Efficiency is further enhanced with an operation time of just 2 seconds per sample. This rapid processing capability makes it ideal for high-throughput settings, such as emergency departments and large-scale screenings. Healthcare providers can expect quicker turnaround times, which is essential for timely diagnoses and treatment decisions.

 

Micro-sampling solution is also designed for practical use. Poclight's clia test reagents can be stored at room temperature, eliminating the need for cold chain transport and allowing for long shelf life. This feature not only simplifies logistics but also ensures that the product is ready to use whenever needed, without the constraints of refrigeration.

 

Poclight's poct clia analyzer are designed for minimal maintenance, with easy installation and user-friendly, one-step operation. This means your staff can focus on what matters most—providing quality care—without the hassle of complex setups or ongoing repairs.

 

 

Experience the advantages of our product today and elevate your laboratory’s diagnostic capabilities.

 

Esophageal cancer is one of the most common malignancies worldwide, with particularly high incidence rates in China. The overall prognosis remains poor, with a five-year survival rate below 40%. For patients diagnosed with resectable early-stage esophageal cancer, surgical resection remains the primary treatment option.

 

With ongoing advancements in endoscopic technology and the widespread adoption of minimally invasive techniques, minimally invasive esophagectomy (MIE) has demonstrated clear advantages over traditional open thoracotomy—most notably in reducing postoperative recovery time and minimizing complication rates. Among these techniques, mediastinoscopy-assisted laparoscopic esophagectomy has gained increasing clinical attention. This approach avoids entry through the thoracic cavity, eliminating the need for single-lung ventilation, preventing thoracic incisions, and reducing intraoperative pulmonary compression. As a result, it imposes less burden on cardiopulmonary function and has been shown in clinical studies to significantly alleviate postoperative pain, promote effective coughing and sputum clearance, and enhance overall recovery. Thus, it serves as a valuable complement to transthoracic esophagectomy and has been increasingly implemented across multiple medical centers both in China and internationally.

 

However, the procedure is technically challenging. In the early stages of applying mediastinoscopy to esophageal cancer surgery, limitations in instrumentation and technique hindered effective exposure of mediastinal anatomy. With improvements in instrument design and the development of mediastinal insufflation techniques, IVMTE (inflatable video-mediastinoscopic transhiatal esophagectomy) can now reliably achieve esophageal mobilization, bilateral recurrent laryngeal nerve exposure, thoracic duct identification and ligation, and lymph node sampling and dissection.

 

Importantly, the Chinese expert consensus on this surgical technique highlights the Maryland dissector as a recommended tool for performing critical surgical maneuvers such as esophageal dissection. The Maryland jaw’s precision, curved profile, and reliable energy sealing capabilities make it an indispensable instrument for sealing large vessels and navigating delicate mediastinal structures during esophageal cancer resections.

 

ShouLiang-med's SL0844 surgical instrument is the Maryland forceps, its jaws are designed with 22° curved shape, which can accurately locate the target tissues to achieve fine dissection, which is conducive to the lymph node clearance and tissue separation operation under the narrow space of mediastinoscopy. 

 

Furthermore, this instrument has multiple application advantages: the upper and lower double-layer heat insulation design of its jaws, together with the precise energy control of the intelligent generator, can achieve the low-temperature effect of less than 90℃ on the working surface after several activations, and the lateral thermal damage is less than 2mm. During the transcervical mediastinal operation, it has a good protective effect on many important parts such as the trachea, recurrent laryngeal nerve, and blood vessels and veins adjacent to the esophagus, effectively reducing the risk of complications; the application of exclusive AGISEAL technology makes it possible to accurately seal blood vessels, lymphatics and tissue bundles with a diameter of less than 7mm. In IVMTE(Inflatable video-assisted mediastinoscopic transhiatal esophagectomy) surgery, it allows direct and safe coagulation of the left gastric artery without complete vascular dissection, achieving a bloodless field while simplifying procedures, reducing technical complexity, and shortening the learning curve for surgeons.  

 

SL0844 meets clinical demands for advanced energy-based instruments and has been widely adopted in IVMTE(Inflatable video-assisted mediastinoscopic transhiatal esophagectomy) globally. It has become one of the indispensable surgical instruments in the application of this procedure.

 

In today’s fast-paced dental clinics, every detail counts toward enhancing patient comfort and maintaining strict hygiene standards. A high-quality Dental Bib not only protects patients from spills and splashes but also reflects the professionalism of your practice. By selecting the right bib solution, you ensure that chairside procedures—from routine cleanings to complex restorations—proceed without interruption or concern over cross-contamination.

When sourcing supplies, understanding the variety of Dental Bib raw materials is key. Options range from soft, absorbent paper blends to polyethylene-coated fabrics that resist moisture and tears. Premium materials offer superior fluid control and gentle feel against the skin, reducing the risk of irritation during longer appointments. Partnering with experienced suppliers ensures consistent quality, so you never have to worry about variability in thickness or absorbency from one batch to the next.

Not all vendors deliver the same level of innovation and reliability. As a leading Dental Bib machine equipment manufacturer, we emphasize rigorous quality control, cutting-edge production techniques, and eco-friendly practices. Our modular dispensers are designed for easy loading and minimal maintenance, seamlessly fitting into any operatory setup. From compact wall-mounted units to freestanding carts, our solutions adapt to the space and workflow of modern dental teams.

At the heart of our offerings is the Dental Bib machine brand—renowned for its durable construction, whisper-quiet operation, and user-friendly design. Beyond product excellence, Telijie service distinguishes us in the marketplace: rapid installation, 24/7 technical support, and personalized training ensure your staff can fully leverage every feature. With Telijie’s commitment to exceptional service, your practice benefits from uninterrupted performance, reduced downtime, and the confidence that comes from partnering with a true industry leader.

As the demand for rapid, accurate, and cost-effective diagnostics grows, healthcare providers are increasingly turning to point-of-care testing (POCT) solutions. One essential test that stands out is C-reactive protein (CRP), a crucial biomarker for monitoring inflammation and infection. If your institution is evaluating POCT-CRP analyzers, this guide outlines how Poclight's innovative solution meets and exceeds clinical and operational expectations.

Seamless Integration and High Throughput

Poclight's POCT-CRP analyzer features seamless integration with laboratory information systems (LIS), using standard interfaces like HL7. This ensures automatic result delivery, eliminating manual entry. It supports high-volume and decentralized testing environments, making it ideal for busy laboratories.

Flexible Sample Compatibility and Minimal Volume Requirement

Flexibility is key in modern diagnostics. Poclight's analyzer accepts C-reactive protein (CRP) blood tests from various sample types: capillary blood (fingerstick), venous blood in EDTA or lithium heparin tubes, and plasma from both venous and capillary sources. Importantly, it requires only 5 µL of S/P/W blood per test, making it suitable for pediatric, elderly, or chronically ill patients who need preserved blood volume.

Reliable Results and Built-in Features

The analyzer delivers precise CRP results within a range of 0.5–320 mg/L, ensuring accurate assessments across diverse clinical conditions.

Long-Term Value and Extra Benefits

Investing in our POCT-CRP analyzer is a long-term decision. Poclight's kits come as single-use lyophilized reagents, no need cold chain. They can be kept at room temperature and have a shelf life of up to 18 months. This convenience not only simplifies logistics but also ensures that healthcare facilities, especially in remote areas, have easy access to essential testing solutions without the worry of refrigeration, and a dedicated support team for training and post-sale service.

Elevate Your CRP Testing Workflow

In a landscape where accuracy, speed, and system compatibility are paramount, our POCT-CRP solution stands out. It combines all these attributes in a compact and reliable device, only A4 size footprint, and the time to first result only 3min, making it the perfect choice for your laboratory needs.

In recent years, Chinese brand products have frequently appeared in top international competitions, with increasingly diverse and in-depth methods. The upcoming Paris Olympics will feature a large number of Chinese products, from sports equipment to Olympic licensed merchandise. Improvement of product quality and performance system. International top-level events are not only arenas for athletes from various countries, but also arenas for the quality and performance of products from different countries. China is deeply implementing the innovation driven development strategy, and the manufacturing industry has achieved significant results in new technologies, new materials, new processes, high-end equipment, etc., which has continuously improved the quality and performance of Chinese manufacturing products. The characteristics of high-end, intelligent, and green are more prominent, further enhancing its competitiveness in the global market, including international sports events. Made in China is renowned for its efficient manufacturing, complete supply chain system, and high-level infrastructure support, which is in line with the diversity, safety, timeliness, and economic requirements of international events for material supply. The complete industrial system ensures that "Made in China" can cover various products required for international events, from keychain souvenirs and table tennis to sports tables and tracks, from cultural and sports equipment, sports equipment to sports shoes and clothing. The presence of "Made in China" can be seen everywhere. The 2024 Paris Olympics in France is approaching; The 2024 FIVB Beach Volleyball U19 World Championship will also be held from August 27th to September 1st at the West Square of Qinling Museum; The 2024-2025 International Ski Federation snowboarding and freestyle skiing Grand Ski Jumping World Cup will be held from November 29 to December 1 this year at the Shougang Ski Jumping in Beijing. The sports economy and related sport products brought about by this series of events have continued to heat up.

Xiamen Huakang Orthopedic CO LTD is a professional manufacturer of orthopedic braces and supports in China. These large-scale sports events have also brought business opportunities to these factories, which are busy producing various sports protective equipment and rehabilitation orthopedic equipment.Its products have all kind of adult orthotic braces with FDA and CE-MDR certification , including toe straps, figure 8 brace ankle support, ankle walking boot , dorsal night splint, plantar fasciitis foot braces, knee brace, sarmiento brace,hip abduction, lower back brace spinal support, clavicle brace and posture support, neck cervical collar, shoulder brace arm sling, humeral brace, wrist splint thumb spica, elbow splint , finger brace etc. Also we produce Children knee brace, kids arm sling, kids walker brace, kids sprained wrist brace ,children cervical collar etc.It still supply disposable medical face mask,kn95 face mask, medical face shield, medical protective isolation gown, medical safety goggles etc.  If you want more information,please enter www.huakangortho.com.

Ankle sprains are very common, with mild cases of ligament elongation or partial tearing; Severe cases may result in complete fracture, ankle subluxation, or concurrent fracture and dislocation.

How to reduce or treat ankle sprains?Ankle protector is a lightweight orthotic or fixator for ankle protection. Ankle protectors are suitable for patients who frequently suffer from ankle sprains, ankle ligament injuries, and ankle instability. Ankle protectors can effectively provide cushioning for the ankle during exercise, limiting left and right ankle movement and preventing sprains caused by ankle inversion. Ankle supports braces can also reduce pressure on the injured area of the ankle joint, strengthen the ankle joint, and promote the recovery of soft tissue injuries. Moreover, this type of  Ankle supports braces can also be used in conjunction with regular shoes and will not affect walking gait. There are various types of ankle guards on the market, such as elastic ankle guards, strap ankle guards, splint ankle guards, AFO， Ankle fixed boots, etc. It is necessary to use ankle guards or Ankle supports braces during exercise. The principle of protection is to apply pressure to the relevant parts and improve the weight-bearing capacity of the ankle ligaments.

Xiamen Huakang Orthopedic Co. Ltd specializes in the R&D, production and sale of orthopedic braces. Our products range includes ankle brace, walker brace，knee brace, back brace, shoulder brace, neck brace, elbow brace, wrist brace, finger brace and others for all parts of body. More info about our factory and products ,you can read from our website https://www.huakangortho.com/www.huakangortho.com or https://www.huakangortho.com/www.orthotic-braces.com.

Back pain, as one of the common diseases.Waist protection belt can reduce the stress on the waist muscles, lumbar intervertebral discs, compressed nerve roots, and lumbar small joints, as well as the load-bearing load of the lumbar spine, increase spinal stability, limit waist movement, and better limit activities such as forward bending, backward extension, and lateral bending of the waist. Waist circumference reduces stimulation to the lower back muscles, wear and tear between small joints, further compression of intervertebral discs, and further stimulation of compressed nerve roots by restricting spinal movement, thereby achieving the effect of reducing lower back pain. Patients with acute injuries such as lumbar vertebrae fractures, acute lumbar sprains, lumbar muscle strain, lumbar fasciitis, lumbar disc herniation, lumbar spondylolisthesis, and patients who require early rehabilitation exercise after lumbar surgery can all use waist protection belts.

Lumbar waist belt is an object that supports the waist and can help reduce the load on the waist, thereby helping to alleviate lower back pain. The correct method to use a lumbar belt protector is to first place the belt protector at the waist, ensuring that the waist is in a moderate position, and then adjust the belt protector to a comfortable tightness, ensuring that the belt protector pulls up on the waist, but does not excessively strain the waist. The lumbar belt protector can not only be used to treat lower back pain, but also to prevent lower back injuries in daily activities. It can provide lumbar support, help the waist better withstand loads, and avoid waist injuries.For patients with lumbar disc herniation, waist belts with certain supporting functions, such as medical belts, functional belts, sports belts, lumbar supports, etc., can be used, but they can only play an auxiliary relief role to a certain extent and cannot have a therapeutic effect.

1. Medical waist belt: Medical waist belts are mainly made of polymer materials, which have strong support and can strengthen the stability behind the lumbar intervertebral disc to a certain extent, reduce the pressure behind the lumbar intervertebral disc to a certain extent, and thus reduce the possibility of protrusion. At the same time, medical waist belts can to some extent limit the movement of the lumbar spine and avoid worsening of lumbar disc herniation;

2. Functional waist belt: The functional waist belt mainly serves to fix the lumbar spine, which can to some extent limit excessive forward flexion and backward extension of the lumbar spine, thereby slowing down the protrusion of the lumbar intervertebral disc. But it can only play an auxiliary role to a certain extent and cannot have a therapeutic effect;

3. Sports belt: It can effectively fix the lumbar spine, reduce excessive forward bending and backward extension of the lumbar spine, avoid increased pressure before and after the lumbar disc, and limit the pressure behind the lumbar disc, thereby reducing the possibility of lumbar disc herniation. Therefore, sports belt can be used for lumbar spine movement, but it should be noted that when using sports belt, it should be used under the guidance of a doctor to prevent improper exercise from worsening the condition;

4. Lumbar support: Wearing a lumbar support can provide corresponding support for the lumbar spine, limit the forward bending and backward extension of the lumbar spine, and thus reduce the pressure on the lumbar intervertebral disc, which is relatively beneficial for lumbar disc herniation.

For patients with lumbar disc herniation, if they want to use a waist belt, it is recommended to follow the guidance of a doctor and not use it blindly. When wearing a waist belt, they should pay attention to the tightness and not be too tight or too loose. If the patient has severe lumbar disc herniation and obvious pain, it is recommended to seek medical attention in a timely manner to avoid worsening of the condition.

Xiamen Huakang Orthopedic CO LTD is a professional manufacturer of orthopedic braces and supports in China . Our products have all kind of adult orthotic braces with FDA and CE-MDR certification , including toe straps, figure 8 brace ankle support, ankle walking boot , dorsal night splint, plantar fasciitis foot braces, knee brace, sarmiento brace,hip abduction, lower back brace spinal support, clavicle brace and posture support, neck cervical collar, shoulder brace arm sling, humeral brace, wrist splint thumb spica, elbow splint , finger brace etc. Also we produce Children knee brace, kids arm sling, kids walker brace, kids sprained wrist brace ,children cervical collar etc. We still supply disposable medical face mask,kn95 face mask, medical face shield, medical protective isolation gown, medical safety goggles etc.  If you want more information,please enter www.huakangortho.com.