Steel grade: Q195 Q215 Q235 Specification: DN15-DN200 Implementation standard: GB/T3091-2015 Quality grade: National standard Application: For conveying water, air, heating […]
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Steel grade: 20 steel Specifications: 25-1020mm Implementation standard: GB/T3087-2008 Quality grade: national standard Purpose: used for heating surface pipes of […]
Steel grade: Q195 Q215 Q235 Specifications: J20*10-J500*450 Implementation standard: GB/T6728-2017 Quality grade: National standard Application: Used in construction, transportation, machinery, […]
Steel grade: Q235B, Q345B, L245, L290 Specification: 219mm-3600mm Implementation standard: SY5037-2012 Quality grade: Ministry standard Application: Spiral pipes are mainly […]
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