304不銹鋼防爆堵頭外六角電工絲堵實(shí)心ExdIIC隔爆型M20*1.5NPT1\/2
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點(diǎn)擊詢盤316不銹鋼防爆堵頭Exd隔爆型防水密封封堵美制螺紋規(guī)格NPT1\/2M20
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