gb standard q235 30x30x3 equal angle steel1.Materials:Q195/ Q235/ Q345/ ST-37/ ST-52/ SS400/ S235JR/ S275JR 2.Standard ASTM,AISI,BS,DIN,GB,JIS 3.Type:Equal angle and Unequal 4.Surface Black bared ,galvanized,painted 5.MOQ 10 tons 6.Payment:TT deposit +BL copy or LC st sight 7.Angle normal si