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 5595 Carbon steel electrically welded tubes for boilers
NBR 5594 Carbon steel seamless tubes for high pressure boilers and super heaters
NBR 5592 Medium carbon seamless steel tubes for boilers and super heaters
NBR 5591 High temperature carbon steel tubes-additional ISO requirements for application in boilers
NBR 5590 Carbon steel tubes welded or seamless,black or hot dip galvanised for fluid conduction
NBR 5587 Steel tubes for conduction with an ANSI/ASME B1.20.1 thread-basic dimensions
NBR 5586 Carbon steel and alloy ferritic and austenitic steel tubes,seamless or welded,general requirements
NBR 5585 Electrically welded carbon steel tubes for heat exchangers
NBR 5584 Steel-chrome-molybdenum and chrome-molybdenum-silica cold finished seamless tubes,for heat exchangers
NBR 5583 Low carbon cold finished seamless steel tubes for heat exchangers
NBR 5582 Steel-chrome-molybdenum and chrome-molybdenum-silico seamless tubes for refinery furnaces
NBR 5581 Low carbon and carbon-molybdenum seamless steel tubes for refinery furnaces
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
