narrow gap one side welding
one side welding process 单面焊接法 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 ; 窄间隙单面自动电弧焊 ..
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窄间隙单面自动电弧焊 narrow gap one-side automatic welding ; side automatic welding
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讨论了窄间隙深槽打底焊焊接方法和工艺，认为用手工氩弧焊进行单面深槽打底焊效果最好。
Welding methods and technology of narrow gap quirk backing weld were discussed. Indirect quirk backing weld using manual hydrogen arc welding is considered as the best result.
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