... 1.solder wire 2.ISO9001:2008,GL,LR,ABS 3.Excellent performance 5. 1, 5, 15, 20kgs spool or 250 350kgs drum solder ... by good technological properties, stable and smooth wire feed, rapid melting speed, high deposition efficiency, minimum arc spatter and even and ... bridges, engineering machinery, pressure vessels and buildings.Producing process: PretreatmentDrawbenchCopperingPacking solder wire ER70S-6