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 598 Ductile iron pipes,fittings,accessories and their joints for sewerage application-requirements and test methods
EN 545 Ductile iron,pipes,fittings,accessories and their joints for water pipelines -requirements and test methods
EN 489 Preinsulated bonded pipe systems for underground hot water networks -joint assembly for steel service pipes,polyurethane thermal insulation and outer casing of polyethylene
EN 448 Preinsulated bonded pipe systems for underground hot water networks -fitting assemblies of steel service pipes,polyurethane thermal insulation and outer casing of polyethylene
EN 253 Preinsulated bonded pipe systems for underground hot water networks-pipe assembly of steel service pipes,polyurethane thermal insulation and outer casing of polyethylene
EN 39 Steel tubes for scaffolding
NAG 150 Steel pipes for gas transportation in internal installations
IRAM IASU 500-26 Black and hot-dipped galvanized seamless and welded,carbon steel tubes for fluid transportation
IRAM IASU 500-25 Steel fluid transportation tubes for general service
IRAM 2592 Electric resistance welded pipe
EN 10217-1 Welded steel tubes for pressure purposes -technical delivery conditions-unalloyed steels with specified room temperature properties Carbon steel tubes suitable for welding or threading
EN 10216-5 Seamless steel tubes for pressure purposes-stainless steel tubes
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
