GB5310?????ˉ????
????GB3087-2008 ???? ?й???????
????GB5310 -2008???? ?й???????
????ASME SA106-------??????ˉ??????????淶
????ASME SA210 ???? ??????ˉ??????????淶
????ASME SA213 ???? ??????ˉ??????????淶
????DIN17175 ???? ????1???????
?????????ˉ????????
????10??20??20G??20MnG??25MnG??15CrMoG??12Cr2MoG??12Cr1MoVG??12Cr2MoWVTiB??10Cr9Mo1VNb??SA210A1??SA210C??SA213 T11??SA213 T12??SA213 T22??SA213 T23??SA213 T91??SA213 T92??ST45.8/??15Mo3??13CrMo44??10CrMo910??
GB3087??GB5310??????
??ˉ??(GB3087-1999 GB5310-1995)
?????GB3087-1999 GB5310-1995
???????????????????????????????ˉ????????ú?????????????????????????????????
??ˉ??????????GB5310-95??ST45.8-?????
??ˉ??( GB5310-1995)
????? GB5310-1995
????????????????????????ˉ????????ú?????????????????????????????????
?????λ???
?? ? ? ?? 
