... SG2 copper coated welding wire ER70s-6 welding carbon steel,500MPa high strength steels,welding in cars,building,bridges SG2 copper coated co2 welding wire AWS ER70s-61) welding wire ER70S-6 have ... ,4.7kg,5kg,15kg,18kg,20kg5) package: one spool/roll into a carton,then on palletGB/T ER50-6 DIN SG2 ... JIS YGW12AWS ER70S-6 BS A18 EN G3Si1 Wire Size Spool Size Net ...