General principles of quality system：The company's quality assurance system is formulated according to the ISO9001:2015 series standard of Quality Manual.

Corporate quality objectives：Always adhere to the requirements of ISO9001 series standards to continuously improve and improve the operation of the quality management system; All products are produced by domestic and foreign standard organizations, aiming at the international advanced level to develop enterprise standards and internal control standards; Strive to reach the international physical quality level of similar products; To provide customers with satisfactory pre-sale and after-sales service.

Main testing equipment：Intergranular corrosion device, hydraulic universal testing machine (high temperature tensile), automatic eddy current testing machine for steel pipe, automatic ultrasonic testing machine for steel pipe, hydraulic testing machine for steel pipe, Rockwell/Vickers hardness tester, PMI.

Quality commitment：Strictly in accordance with ISO9001-2015 production process control and supervision, the implementation of special inspection, mutual inspection and random inspection (inspection) combination. Make quality plan and work instruction for each order while issuing production plan. Production schedule information can be submitted to buyer on a regular basis. Always maintain the cleanliness of steel pipe in the process of production. The warehousing of raw materials, intermediate products and finished products shall be set up in a special area to distinguish it from other contracts.

Provide goods in strict accordance with the latest national, international standards and other technical specifications of the corresponding standards of manufacturing and testing; When the product leaves the factory, the certificate of quality and warranty of the product are attached.