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Q420B Specification: Thickness: 1mm to 500mm; Width: 1500mm to 4500mm: Length: 3...
GB/T1591 Q390A steel is high strength low alloy steel material. "Q" is the first lett...
we supply SAIBIC rebar steel, Railway steel R50 - R65, Billet steel, Coil steel
China new steel holding group co., Ltd is one of the largest iron and steel productio...