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.
NBR 5922 Steel tubes for fuel injection in diesel engines for use in road vehicles,tractors and similar vehicles
NBR 5690 Preparation of asphalt enamel used for steel tubes coating
NBR 5689 Materials for asphalt base coating used in steel tubes for water supply conduction
NBR 5686 Carbon steel and alloy steel tubes for refinery furnaces-welded joints
NBR 5622 Carbon steel tubes with helical seam for use in water,air and low-pressure steam in industrial installations
NBR 5605 Carbon steel and alloy steel tubes,seamless or welded,for low temperature use(except fluid conduction)
NBR 5603 Ferritic seamless steel tubes for high temperature fluid conduction
NBR 5602 Steel tubes,seamless or welded,for low temperatures
NBR 5599 Precision made welded carbon steel tubes
NBR 5598 Rigid carbon steel electrical conduit with protective coating and NBR 6414 thread
NBR 5597 Rigid carbon steel threaded electrical conduit and accessories with protective coating
NBR 5596 Carbon steel electrically welded tubes for high pressure boilers and super heaters
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
