narrow gap one-side automatic welding
... normal weld正常焊接 narrow gap one-side automatic welding窄间隙单面自动电弧焊 narrow gap welding窄间隙焊接; 狭间隙焊 ...
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1 ... narrow gap one side welding 窄间隙单面焊 narrow gap one-side automatic welding 窄间隙单面自动电弧焊 narrow gap welding 窄间隙焊接；狭间隙焊 ...
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