... .Product usage:ships,engine,chemistry,food,sports,uipment,mould,furniture,vessel,container,etc.3.Surface treatment: strongly recommended-shaving treatment, ... or Argon/Helium-mixtures5.Related products:ER4047,this is also aluminium-silicon alloy rod,which contain 12% silicon, can be adapted ... welding all kinds of forging and casting or extruded shape aluminium alloys.6.Dimension:MIG WIRE:0.8mm/0.9mm/1 ...