Certification System

System Certification：
Our company passed the quality management system certification, occupational health and safety management system certification, and environmental management system certification in 2014.

Testing System

In-plant Testing：
After years of production, fulfilling clients' continuous requirements, and continuous cooperation with major clients, we gradually developed our comprehensive quality control system, which covers a series of quality controls from raw materials to clients’ receipt of products and after-sales.
A. Product traceability
Raw material quality guarantees, inbound registration, inventory systematization management, and engineering record cards guarantee that every pipe has its source to be traced.
B. Process controllability
Each process has a corresponding inspection, and engineering record card to control the overall product production process, so that product quality is accurately implemented in the workflow and individuals.Each pipe drawn has the deviation record of inner diameter, outer diameter, and other records.
C. Finished product controllability
After all subdivided processes and their inspection, the finished products are randomly inspected with inspection data.
D. Customer commitment
All the inspections are passed, and our finished products' quality certificate is offered to clients.

Third-party Inspection:
As a vital part of our quality control system, the scope of third-party inspection covers general inspection, such as chemical composition, mechanical properties, hardness, and special requirement inspection, including impact tests, metallographic tests, and so on.Both general and special inspections can be specified by our clients, such as SGS, BV, INTERTEK MOODY, and so on.The third-party inspection organizations appointed by our company are mainly in some well-known domestic enterprises or nationally qualified laboratories, such as CRRC QISHUYAN CO., LTD., Changlin, and the like.