1、对头焊接
... buttweldends对头焊接端 butt-weld碰焊;平式焊接;对头焊接 butt-weldinthedownhandposition对接平焊 ...
2、平式焊接
... buttweldends对头焊接端 butt-weld碰焊;平式焊接;对头焊接 butt-weldinthedownhandposition对接平焊 ...
3、碰焊
... buttweldends对头焊接端 butt-weld碰焊;平式焊接;对头焊接 butt-weldinthedownhandposition对接平焊 ...
4、以对头焊接接合
... V-weld V形坡口(对接)焊缝 butt-weld 以对头焊接接合 welding 焊接法, 定位焊接 ...
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