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詳細(xì)介紹
H44F46J旋啟式襯膠止回閥
設(shè)計與制造按 Design and manufacture：GB12239
結(jié)構(gòu)長度按 Structure length：GB12221
法蘭連接尺寸按 Flange connection size：HG20592
試驗與檢驗按 Test and inspection：GB/T13927
采用標(biāo)準(zhǔn)：設(shè)計制造Design and manufacture of：Q/JBGN03；結(jié)構(gòu)長度Length of the structure：Q/JBGN03；法蘭連接Flange connection：GB/T17241.6(PN1.0MPa)
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