... ,bridges copper coated co2 gas shielded welding wire AWS ER70s-61) welding wire ER70S-6 have excellent mechanical ... wires in shipbuilding,Bridge building, machinery manufacturing and general welding purposes3) sizes: 0.8mm,0.9mm,1.0mm ... 1.2mm,1.6mm,2.0mm4) weight per spool/roll: 4.5kg,4.7kg,5kg,15kg,18kg,20kg5) ... package: one spool/roll into a carton,then on palletGB/T ER50-6 ...