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.
NOM B208 Steel tubes for the protection of electric cables (conduit)-heavy type
NOM B200 Hot formed welded carbon steel structural tubes with a round or rectangular section
NOM B199 Cold formed welded carbon steel structural tubing in rounds and shapes
NOM B177 Black and hot-dipped galvanized welded carbon steel tubes
NOM B137 Electric resistance-welded carbon steel tubes for low-pressure boilers.
NOM B064 Cast iron soil pipe and fittings
NOM B056 Siderurgical industry-Flexible metal conduit
COVENIN 3336 Black and hot-dipped galvanized seamless and welded,carbon steel tubes for general service
COVENIN 3335 Black and hot-dipped galvanized seamless and welded,heavy carbon steel tubes
COVENIN 3030 Seamless and welded carbon,ferritic alloy and austenitic alloy steel tubes.General requirements
COVENIN 2585 Electric resistance-welded carbon steel tubes for exhaust pipe manufacture for passenger and light commercial vehicles
COVENIN 2577 Galvanized steel intermediate metallic tubing for electrical installations
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
