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Cheap Price Newly Produced Hot Rolled Mild Steel Parallel Flange Beam W4 X13 A992 S235jr S355jr Wide Flange Structural Steel H Beam, Find Details and Price about Steel H Beams Construction Steel from Cheap Price Newly Produced Hot Rolled Mild Steel Parallel Flange Beam W4 X13 A992 S235jr S355jr Wide Flange Structural Steel H Beam - Shandong Baotai Metal Materials Group Co., Ltd.