Along with the years of entrepreneurial journey of Zhongyuan people, she gradually formed her own spiritual pillar and behavioral norms. In the silent inheritance, she guided Zhongyuan Company towards a more brilliant tomorrow.
IS 11722 Thin walled flexible quick coupling pipes
IS 11714-1/5 Steel tubes for heat exchangers
IS 10577 Lancing pipes
AS07-0537 Steel pipes for petroleum and natural gas pipeline
AS07-0242 Specification and test method of seamless steel pipes for steam boilers and superheaters
AS07-0071 Spiral welded steel pipes-specification and test method
AS07-0068 Carbon steel pipes for general structure-specification and test method
AS07-0067 Carbon steel pipes for machines structures -specification and test method
AS07-0039 Zinc coated steel pipes-specification and test method
AS05-0069 Union pipe(conduit)
AS 1281 Cement mortar lining of steel pipes and fittings
AS 1163 Structural steel hollow sections
ADD：Chengnan Industrial Development Zone, Yanshan County, Hebei Province
Domestic phone number：0086-317-6689999
International call：0086-317-6165555
E-mail:9905791@qq.com
