?????????????????GB/T9711?????????????????????
???????????????
??????????????????????????????SY5036-83????????????????????????????????????????????????????SY5038-83????????????????????????????????????????????????????????????????????????????????????????????????????????????SY5037-83???????????????????溸?????????????ú??????????????????????????????????????
??????????????????????????:SY/T5037-2000????????? ???????????????????????????????GB/T9711.1-1997?????????????????????????????????????????????A?????(?????????????GB/T9711.2 B?????)????API-5L?????????Э????й?????????з??PSL1??PSL2??????????SY/T5040-92???????????????????
?????????
????Q235A??Q235B.Q23b,0Cr13??1Cr17??00Cr19Ni11??1Cr18Ni9??0Cr18Ni11Nb.??Q345 L245 L290 X42 X46 X70 X80
????????????????????????????????8-1240??1-200mm???????2-16M??????????????????????,?????????????????顢???????????ˉ?????龡??????????????????? ???????????????????????????????????????????????????????????????????????????????????:10????20????Q235????35????45????20G??16Mn??Q345????27SiMn??15 CrMo??12Cr1MoV??15CrMoV??35CrMoV??10CrMoV910??T91??.??б????GB/T8162-1999??GB/T8163-1999??GB3087-1999??GB5310-1995??GB6479-2000??GB9948-88??GB5312-1999??
?綽:0510-88264616??88264669 ???棺0510-88262996 ?????13400031117??13400038833 |