... aws a 5.1 e6013 1,Model: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 ... following:1,Model:AWS E6013,AWS E7018 2,Size:2.5*300mm,3.2*350mm,4.0*400mm,5.0*500mm 3,Pacakge: ... positive polarity. welding electrodes aws a 5.1 e6013