...single oxyacetylene welding goggles单玻璃焊工护目镜 single side welding单面焊 single spot welding单点焊; 单行点焊 single-welded joint 单面焊接头single – welded lap joint 单面焊搭接接头 ..
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single-side welding 单面焊接
single side spot welding 单面点焊
single-side seam welding 单面缝焊
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