What is the wire?
Welding Rod  as a filler metal or at the same time as the conductive metal wire used for Welding Materials. In gas welding and tungsten inert gas shielded arc welding wire used as
Filler metal; submerged arc welding, electroslag welding and other metal arc gas shielded arc welding wire is both a filler metal, but also the conductive electrode. Wire can be divided into three categories. The wire surface is not coated with the oxidation role of flux.