... perfect joint appearance and less slag covering during welding For Main Structure WeldingAWS A5.20 E70T-5JIS ... perfect joint appearance and less slag covering during welding, which all will lead perfect mechanical properties and ... steel and 490MPa high tensile steel, widely used in welding of boiler, tanks, shipbuilding, bridges, constructions, ... type CO2 shielded flux cored welding wire,E70T-5