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Card type stainless steel pipe national standard officially issued
Card type stainless steel pipe national standard officially issued
Card type stainless steel pipe national standard officially issued
Card type stainless steel pipe national standard officially issued
In 2012, Zhengkang participated in the preparation of the card-type stainless steel pipe national standard was officially introduced, and since then the industry has its own "law".
November 2018 Technical Seminar on Preparation of Related Standards
October 25, 2012 German DVGW certification
2006 Shanghai Card Convex Connection Application Technology Demonstration Meeting
First meeting of the preparation group of Technical Specification for Crimped Carbon Steel Pipe Engineering
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