welded bonnet (WB)是什么意思


中文翻译焊接阀盖

网络释义

1)welded bonnet (WB),焊接阀盖2)sreen welding,盖面焊接3)standard,阀门焊接4)welding seat,焊接阀座5)welded flat head,焊接式平盖6)union bonnet (cap),活接阀盖(帽)

用法例句

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