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ChangJia's Quality Assurance

Advanced Testing & International Certifications Drive Manufacturing Excellence

At ChangJia, quality is our top priority. We use many advanced testing equipment like spectrometers, 3D coordinate measuring machines, etc., to rigorously inspect every part and product. and we ensure consistent excellence in all aspects of our manufacturing process. We have our own multiple international certifications, such as IATF 16949 and ISO series.

Attention to detail

What We Have Done to Ensure High-quality Products
700+ Imported Testing Devices for Comprehensive Inspections
We are equipped with over 700 imported testing devices, providing comprehensive inspections across all dimensions, including dimensional measurements, hardness testing, pressure resistance, etc. Our testing precision is maintained within the micrometer range, ensuring the highest quality standards.
Advanced Hydraulic Valve Detector
The hydraulic valve tester uses advanced sensing and data analysis technology to perform rapid and accurate online testing of hydraulic valves. It can monitor various performance indicators of hydraulic valves in real time, detect minor faults and performance deviations in a timely manner, and provide a reliable basis for product quality control.
7S-Driven Quality Assurance
ChangJia strictly implements the 7S management system. It enables digital traceability for all processes, from raw material screening to product delivery. We have a 20-member QA team will monitors all key processes to ensure product reliability, consistency, and on-time delivery.
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Do you have a question?
Experience seamless assistance from our team of Trade Account Managers with everything from quotes to delivery and everything in between for your project. Our trade experts are here to help.
You Can Find Us Here
S10-6-5, Water Port Function area, l Lan Glu-C UN Tan Free Trade Port Area, Jiang B EI District, Chongqing
ChangJia is a global leader in hydraulic technology, integrating R&D, manufacturing, sales, and service to drive innovation and production of core hydraulic components.

 Public Mailbox: info@changjia.com

Contact us

Tina
Tel: +86 135 0836 3447
WhatsApp: +86 135 0836 3447
Email: tina@changjia.com
Anne
Tel: +86 158 2639 0716
WhatsApp: +86 158 2639 0716
Email: anne@changjia.com
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