... efficiency4) Welds at any position Wire Size Spool Size Net Weight 0.8mm1.0mm1.2mm1.6mm D100mm D200mmD270mm D300mm K300mm ... )≥420≥500≥22≥27(-29)Application:Used to weld ship building steel ( A , B , D , E , A36 , D36 , E36 ) and ... Mpa grade mild alloy steel , such as container building , construction machine , railway construction , pressure vessel for semi-auto or automatic gas shielded welding. TEL ...