產(chǎn)品標(biāo)準(zhǔn)
設(shè)計(jì)標(biāo)準(zhǔn):GB/T12237;DIN3357;EN12516-1;ASME B16.34;API608
壁厚標(biāo)準(zhǔn):ANSI B16.34,EN12516-1
螺紋標(biāo)準(zhǔn):GB/T9113;HG20592;DIN1092;ASME B16.5;JIS B2238
檢測標(biāo)準(zhǔn):GB/T 26480;DIN3230;API 598;EN 12266