• Application Engineering for Aging & Weathering Tests

catalogue-1

Home » catalogue-1 »
Sticky

Constant Temperature And Humidity Test Chamber

2025-02-18

Introduction:Constant temperature and humidity test chambers are engineered to replicate specific environmental conditions, making them vital for product testing and quality assurance. 1: How Constant Temperature and Humidity Test Chambers WorkThese chambers use advanced systems to control temperature and humidity levels. Key components include:  2: Key Technical SpecificationsWhen evaluating these chambers, consider:  3: Industries That Rely on These Chambers Product Specifications Our specialists can help you find the perfect temperature and humidity test chamber.  Model  DR-H201-100  DR-H201-150  DR-H201-225  DR-H201-408  DR-H201-1000  Internal Dimension (W*H*D)  400*500*500mm  500*500*600mm  500*750*600mm  600*850*800mm  1000*1000*800mm  External Dimension (sus Type) (W*H*D)  950*1400*1100mm  1100*1500*1100mm  1100*1670*1200mm  1200*1770*1400mm  1550*2100*1400mm  External Dimension (paint Type) (W*H*D)  700*1400*1100mm  800*1500*1100mm  800*1670*1200mm  900*1770*1400mm  1550*2100*1400mm  Temperature（℃） -20/-40/-70  Total Power (KW)  4.5/4.5/6.5  5/5/6.5  9.5/9.5/11.6  9.5/9.5/11.6  17/17/21.5  Maximum Current (A)  25/25/32  32/32/40  25/32/40  32  50/50/60  Voltage (A)   Sigle Phase 220V  Three Phase 380V Performane  Temp.& Humi. Adjust Way  Balanced temperature and humidity control (BTHC) PID intelligent adjustment  Temperature Range  -20℃,-40℃,-70℃~150℃  Temperature Accuracy  0.01℃  Temperature Tolerance  ≤±1.0℃或±2.0℃  Temperature Fluctuations  ≤±0.5℃ （without load and temperature stable）  Temperature Uniformity  ≤1.5℃    （without loading）, 50mm≤SENSOR  Humidity Range  20%-98%RH  Humidity Accuracy  0.1%RH  Humidity Tolerance  1 、≥75%RH：≤±3%RH ；2 、≤75%RH ：≤±6%RH  Humidity  Fluctuations  ≤±2.5%RH  Heating Rate  3℃/min in average  Cooling Rate  1℃/min in average  Regulator  Cooling Method  Single stage compression, two stage compression  Refrigerator  Hermertically Sealed France Tecumseh Compressor or Semi-hermetic BOcK Compressor  Cooling Method  Air-cooled  Controller  Operation Panel  Programmable LCD Touch Screen  Running Mode  Fix Running, Pattern Running  Program Memory Capacity  120 Group Programmable, Max 100 Section Each  Output  Rs-232 (USB,Optional)  Water Sup  Water Supply  Circulating Water  Water Tank Capacity  Chamber Internal Capacity < 800L: 25L X 1pc  Chamber Internal Capacity > 800L: 25LX 2pc Frequently Asked Questions (FAQs) About Constant Temperature And Humidity Test Chambers 1. What industries use constant temperature and humidity test chambers?These chambers are widely used in industries such as: 2….

More
Sticky

120L Salt Spray Corrosion Chamber ASTM B117 Compliant Testing

2020-04-07

Dexiang 120L Salt Spray Corrosion Chamber Precision Testing for Unmatched Durability Experience reliable corrosion testing with the Dexiang 120L Salt Spray Corrosion Chamber. Designed to simulate harsh saline environments, this chamber meets ASTM B117 standards to ensure your coatings, metals, and finishes withstand the toughest conditions. Ideal for automotive, electronics, and aerospace industries, it offers a controlled setting to evaluate corrosion resistance effectively. Key Highlights Capacity: 120 Liters Temperature Range: 35–55°C Spray Volume: 1–2 mL per 80 cm² per hour Standards Compliance: ASTM B117, ISO 9227, JIS Z 2371 Explore the internal setup and sample testing with our 360° image carousel to see how precision and durability come together. Ready to upgrade your corrosion testing? Request a Quote | Download Brochure PDF Detailed Product Description The Dexiang 120 Salt Spray Corrosion Chamber is designed for accelerated corrosion testing using a neutral acidified salt fog. This method helps you quickly assess how well coatings, metals, and finishes hold up in tough, salty environments. By simulating real-world conditions in a controlled, repeatable way, this chamber gives you reliable results every time. At the heart of the chamber is a tower spray system that spreads salt fog evenly throughout the test area. It features a zero-linearity fog mode, which reduces the risk of cross-contamination between samples. Plus, you can program it for different test cycles, including Neutral Salt Spray (NSS), Acetic Acid Salt Spray (ASS), and Copper Accelerated Acetic Acid Salt Spray (CASS) to match your testing needs. The Dexiang chamber stands out with its durable build. It uses corrosion-resistant PVC reinforced with fiberglass, ensuring the chamber lasts longer even under harsh conditions. Titanium nozzles ensure consistent fogging without wear, and an integrated humidification tower keeps droplets from evaporating, maintaining test accuracy every time. Technical Specifications Feature Details Chamber Volume 120L Internal Dimensions 600 x 400 x 500 mm…

More
Sticky

Water Drip Test Chamber IPX1 IPX2 with Precise IEC 60529 Compliance

2020-04-06

Water Drip Test Chamber with IPX1 IPX2 Ensure your products meet top-tier waterproof standards with Dexiang’s Water Drip Test Chamber designed for IPX1 and IPX2 testing. Engineered to simulate real-world water exposure, this chamber precisely controls vertical drips and angled rain simulations to verify ingress protection in electronics, automotive parts, and consumer goods. Built to meet IEC 60529 standards, our IPX1 IPX2 drip test chamber delivers reliable, repeatable results that help you guarantee product durability and compliance with ease. Discover hassle-free testing with advanced automation, user-friendly controls, and robust construction—perfect for manufacturers demanding accuracy and efficiency.Get ready to elevate your product quality and certification process with Dexiang’s trusted drip test solution. Product Overview The Dexiang Water Drip Test Chamber with IPX1 and IPX2 capabilities is designed to test the water resistance of products according to IEC 60529 standards. This vertical water drip apparatus simulates controlled water exposure to verify product durability against dripping and light rain conditions. It’s perfect for testing electronics enclosures, automotive lamp seals, and consumer goods like wearables. Built with precision drip control using flow meters and nozzles, the chamber ensures accurate IPX1 drip test equipment and IPX2 rain simulation chamber operation. The sturdy construction offers a corrosion-resistant build that holds up in busy labs and manufacturing floors. Easy to operate and integrate, this ingress protection rain chamber supports reliable, repeatable testing that meets US market demands for quality and safety. Technical Specifications Our Water Drip Test Chamber with IPX1 and IPX2 capabilities is designed to meet the precise requirements of the IEC 60529 standard for ingress protection testing. Here’s what you can expect: This drip test chamber simplifies IPX1 and IPX2 testing while ensuring reliable, repeatable results every time. It’s built with the versatility to handle electronics enclosures, automotive lamp seals, and similar applications that demand…

More
Sticky

Walk In Environmental Test Chamber

2020-04-06

 1: How Walk-in Environmental Test Chambers WorkWalk-in chambers use advanced systems to control temperature, humidity, pressure, and other environmental factors. Key components include: 2: Key Technical SpecificationsWhen evaluating walk-in chambers, consider: 3: Industries That Rely on Walk-in Chambers Product Specifications Our specialists can help you find the perfect Walk In Environmental Test Chamber. Model DR-H202 System Balanced Temperature & Humidity Control System Temp. range  -70°C~150°C Humid. range 20 ~ 98 percent R.H. Temp. & Humid. accuracy ± 0.3°C;  ± 2 percent R.H Temp. & Humid. regularity ± 1°C;   ± 3 percent RH Resolution 0.1°C, 1 percent, P.I.D control Heating up -40°C ~ +100°C within 45 min Heating down 20°C~ -20°Cwithin 40min Interior dimension(W×D×H) 60×80×85cm Exterior dimension(W×D×H) 120×135×175cm Interior material Stainless steel plate(SUS304) Exterior material Stainless steel plate(SUS304) Insulation Rigid  foam Refrigeration system Air cooled, Hermetic compressor, single stage refrigeration system. Display LCD Safety devices No fuse breaker refrigerator over load relay, Refrigeration High pressure Switch, Over Temp, Protector, Protection relay, Protection fuse, Water Lever protector, Overheat protector, Alarm Accessories Viewing window, Shelves (freely adjustable 2 pcs.), Cable port(Ø50mm)Chamber lamp. Weight Approx. 800kg Power AC380V±10 percent 50/60Hz   Walk In Environmental Test Chamber Frequently Asked Questions (FAQs)：

More
Xenon-Lamp-Accelerated-Aging-Test-Chamberr

Xenon Lamp Accelerated Aging Test Chamber

2020-04-06

Xenon Lamp Accelerated Aging Test Chamber for Reliable Material Durability Meet the Air Xenon Lamp Accelerated Aging Test Chamber, designed to bring precision and consistency to your weathering tests. Our chamber simulates sunlight exposure using a full-spectrum xenon arc lamp, allowing you to accelerate the aging process while closely replicating real-world conditions. This makes it ideal for industries like automotive, textiles, coatings, plastics, and electronics where durability and fade resistance are critical. Built to meet ASTM G155, ISO 4892-2, and SAE J2527 standards, our chamber ensures your testing aligns with industry benchmarks. With features like adjustable irradiance, temperature, and humidity control, plus easy sample handling, it’s a trusted solution for quality assurance and R&D labs aiming to minimize product failure rates and improve lifespan. Ready to enhance your material testing with accurate, repeatable results? Contact us today to learn more about how the Air Xenon Lamp Accelerated Aging Test Chamber fits into your reliability testing program. Key Features and Benefits Feature Benefit Full-spectrum Xenon Lamp Realistic sunlight simulation for accurate aging results Wide Temperature Range Test materials under varying heat conditions High Humidity Control Simulate different climate impacts Adjustable Irradiance Levels Customize testing intensity to match real-world exposure Modular Filters and Sample Holders Flexible testing options for various materials Water-cooled Lamp System Longer lamp life and stable operation Compliance with ASTM G155 and ISO 4892-2 Meets industry standards ensuring reliable results Over-temperature Protection Keeps the chamber safe during long testing cycles Intuitive Touchscreen Interface Easy setup and control to save time Why it Matters Use these features to improve your material testing workflow and get consistent, trustworthy results every time. Technical Specifications Specification Details Dimensions Bench-top: 30″ x 24″ x 36″ Walk-in: customizable Power 120V/220V, 1500W Temperature Range 25°C to 80°C Irradiance Up to 1000 W/m² (adjustable) Humidity Control 20%…

More

Risks of Using a UV Chamber and How to Ensure Safe Operation

2020-04-06

If you’re using or considering a UV chamber, understanding the risks of using a UV chamber is crucial—not just for compliance, but for the health and safety of your team and environment. While UV chambers deliver powerful disinfection and testing capabilities, improper use can lead to serious hazards like skin burns, eye damage, electrical shocks, and even material degradation. In this post, we’ll cut through the jargon and highlight exactly what you need to watch for—so you can harness the benefits of UV technology confidently and safely. Ready to dive in? Let’s get started. Health Risks Protecting Operators from UV Exposure Using a UV chamber comes with real health risks if proper precautions aren’t taken. The ultraviolet light inside these chambers can cause both immediate and long-term harm to anyone exposed directly. Acute Effects These effects happen because UV light damages the outer layers of the skin and eyes. Without proper protection like goggles or barriers, operators risk painful and harmful reactions. Chronic Dangers Repeated exposure to UV radiation, even at low levels, adds up over time. This cumulative effect raises the risk of skin cancer and accelerates skin aging. In labs and clinics where UV chambers are common, the chance of long-term damage grows if safety measures fail or are bypassed. Vulnerable Groups Dexiong Safety Features To minimize these health risks, our Dexiong UV chambers come equipped with several protective elements: By integrating these built-in safety mechanisms, Dexiong helps protect users and supports compliance with industry UV exposure safety standards (ISO 11137). This focus on operator health is why many professional labs trust our chambers for safe, effective UV applications. Operational and Electrical Hazards Ensuring Safe Handling and Maintenance Using a UV chamber comes with certain operational and electrical risks that you need to manage carefully. One common hazard is electric shock, especially when…

More

What Does a Stability Chamber Do Explained with Features and Uses

2020-04-06

If you’re working in pharmaceuticals, cosmetics, or any industry where product quality matters, understanding what a stability chamber does is essential. These specialized units aren’t just fancy boxes—they’re the backbone of accurate environmental testing that predicts how your products hold up over time. From controlling temperature and humidity to meeting strict ICH stability guidelines, stability chambers provide the trusted data you need to ensure safety, efficacy, and compliance. Ready to discover how these chambers give your product the ultimate advantage? Let’s get into it. What Is a Stability Chamber The Basics Explained A stability chamber is a specialized controlled environment designed to simulate specific temperature, humidity, and light conditions. Its primary role is to monitor how products degrade over time under these controlled settings. By creating a stable atmosphere, it helps manufacturers understand a product’s shelf life, potency, and overall durability. Historically, stability chambers evolved alongside global regulatory guidelines, especially the ICH (International Council for Harmonisation) standards Q1A through Q1F. These guidelines standardized testing conditions worldwide to ensure consistency and reliability in stability testing across industries. What sets stability chambers apart from general environmental chambers is their focus on long-term product stability testing rather than just short-term stress conditions. While environmental chambers might be used for quick stress tests, stability chambers provide precise conditions to evaluate product quality over weeks or months, making them essential for compliance with pharmaceutical shelf life testing and other regulatory demands. How Does a Stability Chamber Work Inside the Science A stability chamber works by carefully controlling temperature, humidity, and sometimes light to mimic real-world conditions products face over time. The basic principle is managing thermodynamics—keeping temperature steady helps maintain consistent relative humidity (RH). Sensors and thermostats work together to monitor and adjust the environment, ensuring accuracy. Core Components Step-by-Step Process Typical Specs Table Parameter Typical Range Notes Temperature 15°C…

More

What Is a Humidity Chamber Used For Applications Features and Benefits

2020-04-06

If you’ve ever wondered what a humidity chamber is used for, you’re not alone. In industries where moisture can make or break product quality—from pharmaceuticals to electronics—understanding this tool is crucial. A humidity chamber creates controlled environments that mimic real-world damp conditions, helping you predict how your products stand up over time. Whether you’re tackling shelf-life challenges or testing durability under harsh climates, mastering humidity testing can save you from costly surprises down the line. Ready to uncover why this equipment is essential for quality assurance and innovation? Let’s get into it. What Is a Humidity Chamber A Quick Primer A humidity chamber is a specialized environmental test chamber designed to control relative humidity and temperature precisely. It simulates various moisture conditions to test how products respond to changes in humidity over time. Originally developed for scientific research, these chambers have evolved into essential tools for industries needing reliable stability testing equipment. Today, humidity chambers offer advanced climate simulation capabilities that mimic real-world storage, transport, and usage environments. Dexiang humidity chambers stand out with strict compliance to international testing standards and consist of components like high-precision sensors, vapor generators, and programmable control systems. These features ensure consistent and reproducible results tailored for accelerated aging, corrosion resistance evaluation, and shelf-life assessment. Simply put, a humidity chamber helps you understand product durability and quality under fluctuating environmental conditions—making it indispensable in quality assurance and R&D across many sectors. Explore how Dexiang brings accuracy and innovation to humidity testing with solutions built for your industry needs. Primary Uses How Humidity Chambers Drive Quality Assurance Humidity chambers play a key role in keeping product quality consistent. They simulate real-world conditions like storage, transport, and everyday use. This helps companies catch potential issues early, before products reach customers. Typical tests include: At Dexiang, we provide highly customizable cycles…

More

Battery Crush and Nail Penetration Test Chamber

2020-04-06

Battery Crush and Nail Penetration Test Chamber Overview Are you looking for reliable and precise testing equipment to ensure your lithium batteries meet safety and durability standards? The Dexiang Battery Crush and Nail Penetration Test Chamber is designed to simulate mechanical abuse scenarios, helping you evaluate battery performance under extreme conditions. This advanced test chamber supports crush and nail penetration tests essential for compliance with IEC 62133, UL 1642, and UN 38.3 standards. Key benefits include: Accurate Mechanical Abuse Simulation: Precisely replicates crush and nail penetration events to test lithium-ion cells, modules, and battery packs. Enhanced Safety Features: Built-in explosion-proof design and smoke exhaust systems ensure operator safety during high-risk tests. Real-time Monitoring and Data Export: Track test progress instantly, with easy data capture for quality control reports. Versatility for Various Battery Formats: Supports pouch, cylindrical, and prismatic cells as well as EV battery modules. Get started with Dexiang’s trusted battery safety test chamber to improve your quality control, reduce risk, and meet global regulations. Contact us today for a demo or quote tailored to your testing needs. Technical Specifications Model DX-D206  Drive mode Servo motor drive; Control method PLC touch screen control; Force range 1～20kN; Extrusion stroke 250mm; Force value display touch screen display; Extrusion head Extrusion head area ≥20cm²; Extrusion degree Extrusion pressure reaches 13±0.2kN, keep for 1min; Test space 200x200x200mm (width x depth x height) External material A3 steel plate and painted, thickness 1.5mm; Material of inner box SUS#304, thickness 1.2mm; Steel needle φ2mm～φ8mm high temperature resistant steel needle, the length is 100mm (can be specified); Inner box size 520x450x560mm (width x depth x height); Dimensions 800x700x1720mm (width x depth x height, including door lock); Pressure relief door size 200x200mm; Smoke exhaust pipe diameter φ100mm, located at the back of the box; This Battery Crush & Nail…

More

Battery Impact Thermal Shock Chamber

2020-04-06

Battery Impact Thermal Shock Chamber Product Overview Meet the Battery Impact Thermal Shock Chamber designed specifically for rigorous lithium battery testing. This state-of-the-art thermal shock tester offers rapid temperature cycling combined with precise control, replicating real-world thermal impacts that batteries face in advanced applications. Key Features at a Glance High precision temperature zones enabling swift transitions between hot and cold environments Chamber volume optimized for EV battery modules, telecom packs, and energy storage systems Explosion-proof design ensures safety during thermal runaway simulations Advanced PID controller for accurate test cycle programming Efficient air-to-air thermal shock technology for reliable results with low power use Visual Highlights Our high-resolution images showcase the chamber’s robust build, user-friendly control panel, and modular design. From the impact resistant doors to integrated safety sensors, every detail underlines quality and performance trusted by battery innovators across the U.S. Explore how this tester meets UN38.3 and IEC 62133 standards, ensuring your lithium battery development stays ahead in safety and reliability. Why Thermal Shock Testing Is Critical for Battery Innovation Thermal shock testing is a must-have for anyone working with lithium-ion batteries, especially here in the U.S. where safety and durability standards keep getting tougher. Batteries can face rapid temperature changes in real-world use—think hot summers, cold winters, or sudden operational spikes. Without proper testing, these shifts can trigger thermal runaway, risking fires or explosions. This isn’t just a safety issue; it can halt product development and cause costly recalls. Regulations like UN38.3 and IEC 62133 set strict guidelines for battery safety, including how batteries must handle thermal abuse. Failing these tests means products can’t hit the market. That’s where Dexiang’s Battery Impact Battery Thermal Shock Chamber steps in. It replicates sudden temperature swings exactly as batteries would experience in EVs, telecom gear, or energy storage systems. With precise control over temperature zones and…

More

Battery Fire Test Chamber

2020-04-06

Dexiang Battery Fire Test Chamber Ensure lithium ion battery safety with certified fire and explosion simulation. The Dexiang Battery Fire Test Chamber features an advanced explosion-proof enclosure designed for rigorous thermal runaway, flammability, and abuse testing. Built to meet strict industry standards including UL 1642, IEC 62133, and UN 38.3, this chamber delivers reliable, repeatable results every time. Key Benefits Zero compromise safety with automatic CO2 fire suppression Precise flame control for consistent, repeatable testing Customizable chamber volumes up to 800 liters for EV battery packs Robust design suitable for lithium ion flammability testing and abuse scenarios Explore high-resolution product images, including interior and exterior views, 3D renders, and an installation demo to see how Dexiang ensures your battery testing meets the highest standards. Request a Quote to customize your battery fire test chamber today. Product Introduction The Dexiang Battery Fire Test Chamber is designed to simulate extreme fire scenarios, helping you assess the safety and integrity of lithium-ion batteries. It’s built tough with reinforced stainless steel and comes equipped with integrated sensors that detect hazards early, so you can prevent real-world failures in electric vehicles, drones, and portable devices. This battery abuse testing equipment is perfect for R&D teams, quality control, and certification labs focused on lithium-ion cell and module testing. Watch our quick 60-second demo to see how easy it is to set up and run a full test cycle, giving you reliable, repeatable results every time. Key Features and Safety Innovations Our Dexiang Battery Fire Test Chamber is built tough with explosion-proof construction. The interior uses SUS304 stainless steel for durability and corrosion resistance, while the exterior features anti-spark materials to prevent ignition risks during testing. Safety is top priority with an advanced CO2 fire suppression system that automatically activates when smoke, hydrogen (H2), or carbon monoxide (CO)…

More

Two-Box Thermal Shock Chamber

2020-04-06

What is a Two-Box Thermal Shock Test Chamber and Why Choose Dexiang A Two-Box Thermal Shock Test Chamber is specialized equipment designed to simulate rapid temperature changes by transferring samples between a hot zone and a cold zone. This thermal stress simulation uses a basket transfer system to quickly move test items, exposing them to extreme temperature shifts that reveal material durability and product reliability under real-world conditions. At Dexiang, our Two-Box Thermal Shock Chambers stand out for their advanced design and proven performance. Trusted by customers in over 50 countries, our chambers deliver up to 40% energy savings compared to traditional models. This efficiency means lower operating costs and a reduced environmental footprint. We understand the challenges users face: unreliable equipment leads to costly downtime and delays in product development. Dexiang chambers address these pain points by offering fast and precise temperature cycling with a reliable basket transfer mechanism. This translates to faster return on investment and minimized downtime, helping engineers meet tight schedules without compromise. Choosing Dexiang means investing in dependable, energy-efficient thermal shock testing that supports your product’s success. Key Features of Dexiang Two-Box Chambers The Dexiang Two-Box Thermal Shock Test Chamber stands out with its fast and reliable transfer mechanism. Using a pneumatic basket system, it moves samples between hot and cold zones in under 10 seconds, ensuring precise thermal shock simulation without delays. Controlling the chamber is simple and user-friendly thanks to the touchscreen PLC interface. It stores up to 100 programs for easy repeatability, and real-time monitoring keeps you updated on every cycle, helping you catch any issues before they become problems. Safety is a top priority. The chamber comes equipped with overheat and low-temperature alarms, door interlocks to prevent accidental opening during cycles, and FM-approved safeguards for extra peace of mind. Dexiang’s eco-friendly…

More

Altitude Test Chambers

2020-04-06

What Are Altitude Test Chambers and Why Do You Need Them Altitude test chambers are specialized environmental test equipment designed to simulate high-altitude conditions by creating low-pressure environments using advanced vacuum technology. These chambers replicate the reduced atmospheric pressure found at elevations up to 50,000 feet and beyond, allowing manufacturers to assess how critical components like avionics, aerospace systems, and electronics perform under real-world hypobaric stress. This simulation is vital because devices that fail to operate reliably at high altitudes can lead to costly product recalls, operational failures, or certification delays. By accurately mimicking the low-pressure, low-oxygen environment, altitude test chambers help uncover vulnerabilities early in the product development cycle. This reduces risks associated with pressure-induced malfunctions and ensures compliance with stringent industry standards. Dexiang’s altitude test chambers address these pain points with precise pressure controls and faster testing cycles, helping clients accelerate certification while avoiding costly setbacks. For more detailed information on environmental testing solutions, visit Dexiang’s [Environmental Testing Guide]. Key Features of Dexiang Altitude Test Chambers Dexiang altitude test chambers bring solid, reliable features designed for precise and consistent testing. Here’s what makes them stand out: Dexiang vs Generic Altitude Test Chambers Feature Dexiang Chambers Generic Chambers Pressure Stability ±0.1 kPa ±0.5 kPa or higher Ramp Rates (Altitude Change) Faster, customizable Slower, fixed Sensor Integration Fully integrated Limited or external User Interface Intuitive HMI Basic controls Humidity Control Features Available, precise Often missing or minimal We also offer altitude test chambers with humidity control features, ideal for testing products sensitive to moisture in low-pressure environments. This combination lets you mimic complex real-life conditions like mountain storage or avionics in varied climates. If you’re looking for a reliable, flexible hypobaric altitude testing system, Dexiang’s chamber line is built to deliver consistent performance and streamlined operation every time. Technical Specifications…

More

© 2026. All Rights Reserved. cntestingchamber.com

Skype Skype
Skype
 Telegram Telegram
Telegram
 Tel Tel
+86 151 1281 2380
 Whatsapp Whatsapp
+86 15112812380