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.
DIN 2395-1 Rectangular and square welded steel hollow sections-dimensions
DIN 2395-1/2/3 Rectangular and square welded precision steel tube or hollow sections
DIN 2394-1/2 Welded and sized precision steel tubes
DIN 2393-1/2 Welded precision steel tubes
DIN 2391-1/2 Seamless precision steel tubes
DIN 2391 Steel seamless precision tubes
DIN 1785 Wrought copper and copper alloy tubes for condensers and heat axchangers
DIN 2449 Seamless steel tubes in ST 00,dimensions and range of application
DIN 2448 Seamless steel pipes and tubes -dimensions,conventional masses per unit length
DIN 2445-2 Seamless steel tubes for dynamic loads -cold drawn tubes,nominal pressures 64 to 400
DIN 2445-1 Seamless steel tubes for dynamic loads-hot finished tubes,nominal pressure 100 to 400
DIN 2445-1/2 Seamless steel tubes for dynamic loads
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