... .2/4.0/4.8mm 3.Surface:smooth and clean Aluminum welding wire:1.Products: ER4043,ER4047,ER1100,etc.2.Diameter ... .2/4.0/4.8mm3.Surface:smooth and cleanSpecifications:1.Aluminum and aluminum-alloy welding wire2.Festures:high quality,little spark,perfect ... ,ship,engine,chemical plant,foods,sports equipment,model,furniture,vessel,container..ER4047: Can be used in welding or alloy production.ER5356 ...