... 搭接对接接头 buttandlapjoint 锁底对接接头 lock butt joint 对接接头平接 abutment joint ...
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Two passes ASAW technology for girth weld of LPG cylinder with lock butt joint is introduced.
本文介绍了液化石油气钢瓶环缝锁底接头、两道埋弧焊工艺。
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