... :AWS E6013,AWS E7018 2,Size:2.5*300mm,3.2*350mm,4.0*400mm,5.0*500mm 4,Good Price welding electrodes ... aws a 5.1 e6013Our welding wire has excellent ... :AWS E6013,AWS E7018 2,Size:2.5*300mm,3.2*350mm,4.0*400mm,5.0*500mm 3,Pacakge: 2.5kg/box ... be conneted with the positive polarity. welding electrodes aws a 5.1 e6013