... E6013, 2,Size:2.5*300mm,3.2*350mm,4.0*400mm,5.0*500mm 4,Good Price and Good quality Welding electrodes ... AWS E6013:Our welding wire has excellent mechanical performance, best quality and competitive ... and it is also suitable for narrow path.4. the welding electrodes must be conneted with the positive polarity. welding electrodes AWS E6013