Aluminum welding wire: 1.Products: ER4043,ER4047,ER1100,etc. 2.Diameter: 1.6/2.0/2. ... 3.Surface:smooth and clean Aluminum welding wire:1.Products: ER4043,ER4047,ER1100,etc.2.Diameter: 1.6/2.0/2 ... : can be used in architeture,decoration,euqipment,pipe,spinning machine..ER4043: Can be used in bosting,ship,engine,chemical plant,foods ...