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.
ISO 7598 Stainless steel tubes suitable for screwing in accordance with ISO 7-1
ISO 7186 Ductile iron products for sewage applications
ISO 6954 Cast iron drainage pipes and fittings-spigot series
ISO 6932 Cold reduced carbon steel strip with a maximum carbon content of 0,25%
ISO 6761 Steel tubes-preparation of ends of tubes and fitings for welding
ISO 6759 Seamless steel tubes for heat exchangers
ISO 6758 Welded steel tubes for heat exchangers
ISO 6600 Ductile iron pipes-centrifugal cement mortar lining-composition controls of freshly applied mortar
ISO 6594 Cast iron drainage pipes and fittings-spigot series
ISO 6537 Pneumatic fluid power systems-cylinder barrels -requirements for non-ferrous metallic tubes
ISO 5256 Steel pipes and fittings for buried or submerged pipe lines -external and internal coating by bitumen or coal tar derived materials
ISO 5252 Steel tubes -tolerance systems
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
