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.
ANS B31.3 Process piping
ANS B31.1 Power piping
ANS B16.25 Butt welding ends
ANS B2.1 Specification for welding procedure and performance qualification
ANS B1.20.1 Pipe threads,general purpose (inch)
CSA Z245-1 Steel Line Pipe
UL1242 Intermediate metal conduit
UL797 Electrical metallic tubing
UL6 Rigid metal conduits
SAE AMS 6415 Bars,forqings,and tubing 0.80Cr 1.8Ni 0.25Mo (0.38-0.43C)
SAE AMS 5732 Steel bars,wire,forgings,tubing,and rings,corrosion and heat resistant 15CR-25.5NI-1.2MO-2.1TI-0.006B-0.30V consumable electrode melted 1800°F(982°℃)solution and precipitation heat treated
SAE AMS 5653 Steel bars,forgings,tubing,and rings,corrosion and heat resistant 17CR-12NI-2.5MO (SAE 30316L) solution heat treated
ADD：Chengnan Industrial Development Zone, Yanshan County, Hebei Province
Domestic phone number：0086-317-6689999
International call：0086-317-6165555
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