wenzhou zhengxin pipe co.,ltd quality control

Standard:enviorment quality management system certification

Number:60721S10101ROS

Issue Date:2021-05-20

Expiry Date:2024-05-19

Scope/Range:material and pipe products was producing

Issued By:beijing dongbiao quality limited company

Standard:quality management system certification

Number:60721Q10163ROS

Issue Date:2021-05-21

Expiry Date:2024-05-19

Scope/Range:material and pipe products was producing

Issued By:beijing dongbiao quality limited company

Standard:Test Report

Number:ZYW202005395

Issue Date:2022-11-22

Expiry Date:2022-11-22

Scope/Range:material and pipe products was producing

Issued By:Zhejiang Province Metal lurgic products quality test station co., ltd

Standard:safely healthy management certification

Number:60721s10101ROS

Issue Date:2022-11-22

Expiry Date:2024-05-20

Scope/Range:material and pipe products was producing

Issued By:beijing dongbiao quality limited company