GOST-12821-flange-dimensions-WELD-NECK-FLANGE-PN63-6.3Mpa参考标准规范

HEBEI HAIHAO GROUPISO,ABS.CE/PED APPROVEDHHMengcun,Cangzhou,Hebei,ChinaProfessional Steel Piping SolutionHAIHAO GROUPwww.haihaopiping.comEmail:sales@haihaogroup.comGOST /TOCT 12821 Welding neck flange Dimensions.PN63-6.3Mpa001n Or8.Od0d10D200PN63-6.3MpaDimensions in mmDn,MMD,MMD1,MMd,MMDm,MMDn,MMd1,MMb,MMh4,MM-g151057514381912164641.15201259018482618185441,80251351001852332520562.30321501102264393121602.944016512522744637216543.75501751352286584723674.6365200160221067764257286.29802101702212090772772872210025020026140110942977810,71125295240301721351183395817,131503402803320616114235105824.6020040534533264222198411101236.6025047040039316278246451151250.8930053046039370330294501201668.1535059552539430382342561401698.68400670585454844323866215516135.8050080070552594535485661652019274600925820567046365857118020269,2780011651050629208267858522524463.8710001415129070116010289859228028980.601200166515307813861228118595315321263,72