Combination Gas Metal-Arc Weld and Submerged-Arc Weld Pipe
Combination Gas Metal-Arc Weld and Submerged-Arc Weld Pipe : Pipe having one longitudinal seam formed by the combination of continuous gas metal-arc welding and automatic submerged arc welding. The gas metal-arc welding process shall be first and followed by the submerged-arc welding process. (Spec 5L)
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