Wire is used as a filler metal or both as a conductive wire solder material. In gas welding and gas shielded tungsten arc welding, the wire is used as a filler metal; in submerged arc welding, electroslag welding and other gas-metal arc welding, the wire is both a filler metal.
At the same time the wire is also a conductive electrode. The surface of the wire is not coated with anti-oxidant flux.
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