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Large Stock of Metal ASTM A36 A106 20# 45# Q235 Q345 Section Steel H-Beam I-Beam, Find Details and Price about H Beam Steel I Beam Steel from Large Stock of Metal ASTM A36 A106 20# 45# Q235 Q345 Section Steel H-Beam I-Beam - Liaocheng Mingxing Pipe Manufacturing Co., Ltd.