gas shielded magnetic flux arc welding磁性焊剂气体保护电弧焊 gas shielded metal-arc welding气体保护金属弧焊 gas shielded welding气体保护焊 ..
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气体保护金属极电弧焊 is shielded metal arc welding ; gas metal arc welding ; MAGS ; stick welding
气体保护金属极弧焊 gas metal arc welding ; GMAW
气体保护金属电弧焊 gmaw welding
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