專(zhuān)業(yè)雙相不銹鋼截止閥,高中壓國(guó)標(biāo)美標(biāo)蘇式,北京式。2205,2507,2520(310S),2507加銅,904L等等304,304L,321,316L常規(guī)不銹鋼材質(zhì)。鎳合金閥門(mén)球閥,閘閥,截止閥,止回閥,蝶閥,過(guò)濾器。氣動(dòng)波紋管截止閥管道燃?xì)庾蚤]閥三片式礦漿閥