8311: Wire, rod,etc of base metal, carbide for welding etc

831110: Electrodes, coated, of base metal, for arc welding 831120: Wire, cored, of base metal, for electric arc welding 831130: Coated rods/cored wire for flame solder/braze/weld 831190: Electrodes etc of base metal or metal carbide, nes 8311: Wire, rod,etc of base metal, carbide for welding etc