... solder wire 2.ISO9001:2008,GL,LR,ABS 3.Excellent performance 5. 1, 5, 15, 20kgs spool or 250 350kgs drum solder ... wire feed, rapid melting speed, high deposition efficiency, minimum arc spatter and even and beautiful welding line, is ... position welding.This series of welding wire is mainly applied to low carbon steel ... buildings.Producing process: PretreatmentDrawbenchCopperingPacking solder wire ER70S-6