... product quality. Our good prestige grows unceasingly. We struggle for our own brand. Our company mainly produce CO2 welding wire ... )≥420≥500≥22≥27(-29)Application:Used to weld ship building steel ( A , B , D , E , A36 , D36 , E36 ) ... grade mild alloy steel , such as container building , construction machine , railway construction , pressure vessel for semi-auto or automatic gas shielded welding. TEL ...