高溫高壓止回閥
螺紋止回閥,衛(wèi)生級(jí)止回閥,消聲止回閥
執(zhí)行標(biāo)準(zhǔn) 設(shè)計(jì)制造:ANSI B16.34 結(jié)構(gòu)長(zhǎng)度:ANSI B16.5 檢驗(yàn)與試驗(yàn):API598 API16D
Executive Standard
Designing and mamafulturing:ANSI B16.34
Face to face:ANSI B16.5
Nspectionand Test Standart:API598,API16D