J61Y不銹鋼針型閥J61Y-320P焊接式針型閥J61Y-160P針型閥J61Y-100P焊接式針型截止閥J61Y-64P不銹鋼針型閥/高壓針型閥/散熱型對(duì)焊針型閥/不銹鋼焊接針型截止閥/不銹鋼對(duì)焊式針型閥/不銹鋼承插焊針型閥/不銹鋼針型截止閥/不銹鋼焊接針型閥/J61Y-320RL不銹鋼316L針型閥/J61Y-320P不銹鋼304針型閥適用于火力發(fā)電廠(chǎng)的蒸汽等高壓高溫管路上作為啟閉機(jī)構(gòu)。