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.
EN 10224 Steel pipes,joints and fittings for the conveyance of aqueous liquids including potable water
EN 10220 Seamless and welded steel tubes -dimensions and masses per unit length
EN 10219-2 Cold formed welded structural hollow sections of non-alloy and fine grain steels -tolerances,dimensions and sectional properties
EN 10219-1 Cold formed welded structural hollow sections of non-alloy and fine grain steels-technical delivery conditior
EN 10219-1/2 Cold formed welded structural hollow sections of non-alloy and fine grain steels
EN 10217-7 Welded steel tubes for pressure purposes -technical delivery conditions-stainless steels
EN 10217-5 Welded steel tubes for pressure purposes -technical delivery conditions-submerged arc welded unalloyed and alloyed steels with specified elevated temperature properties
EN 10217-4 Welded steel tubes for pressure purposes-technical delivery conditions-ERW unalloyed and alloyed steels with specified low temperature propertie
EN 10217-2 Welded steel tubes for pressure purposes -technical delivery conditions-unalloyed and alloyed steels with specified elevated temperature properties
EN 10246-6 Non destructive testing of steel tubes -automatic full peipheral ultrasonic testing of seamless seel tubes for the detection of transverse imperfections
EN 10246-5 Non destructive testing of steel tubes-automatic full peripheral magnetic transducer/flux leakage testing of seamless and welded (except submerged arc welded)ferromagnetic steel tubes for the detection oflongitudinal emperfections
EN 10246-4 Non destructive testing of steel tubes -automatic full peripheral magnetic transducer/flux leakage testing of seamless ferromagnetic steel tubes for the detection of transverse imperfections
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
