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 FDIS 2531 Ductile iron pipes,fittings,accessories and their joints for water or gas applications
ISO 2037 Stainless steel tubes for the food industry
ISO 1461 Metallic coatings-hot dip galvanized coatings on fabricated ferrous products-requirements
ISO 1460 Metallic coatings-hot dip galvanized coatings on ferrous materials-gravimetric determination of the mass per unit area
ISO 1459 Metallic coatings-protection against corrosion by hot dip galvanizing-guiding principles
ISO 1129 Steel tubes for boilers,superheaters and heat exchangers -dimensions,tolerances and conventional masses per unit length
ISO 1127 Stainless steel tubes -dimensions,tolerances and conventional masses per unit length
ISO 657-21 Hot rolled steel sections-T-sections with equal depth and flange width -dimensions
ISO 657-19 Hot rolled steel sections-bulb flats (metric series)-dimensions,sectional properties and tolerances
ISO 657-16 Hot rolled steel sections-sloping flange column sections (metric series)-dimensions and sectional properties
ISO 657-15 Hot rolled steel sections-sloping flange beam sections(Metric series)-dimensions and sectional properties
ISO 657-13 Hot rolled steel sections-tolerances on sloping flange beam,column and channel sections
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
