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Export what is Q355GNH steel material to Pakistan 9120 tons
Export what is Q355GNH steel material to Pakistan 9120 tons
- Comments: Q420B material is a low-alloy high-strength structural steel. what is Q355GNH steel, Q420 is not high-strength steel, it is still low-carbon steel. Its tensile strength has been improved a bit. The tensile strength of Q235 steel is 235MPa, and the tensile
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