steel flat bar thickness:1.5-20mm width:150-600mm length:5000-14000mm material:Q235,Q195,Q345 steel flat barthickness:1. ... specializing in manufacturing steel products.Our products include H-BEAM ,ANLGE STEEL , I-BEAM ,SEAMLESS STEEL TUBE ,ERW STEEL TUBE ,STAINLESS WELD ... PIPE, STEEL WIRE AND SO ON . We ...