H40F46J浮球式襯膠、襯氟塑料止回閥
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
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
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