unitor ICUNI W 239焊条焊丝,Solid wire for GMA welding of copper-nickel alloys containing 10–30% Ni.Unitor ICUNI-W is a wire for welding copper-nickel alloys (cunifer) in wrought or cast form, containing up to 30% Nickel, and for joining these to steel, stainless steel, cast iron, bronze or brass. It may also be used to provide corrosion resistant overlays on cast iron and mild steel. Use pure Argon as shielding gas.