20#?????|?????????????|45#??????|??????
???????? ?? ??
?????? ??? Standard
????GB/T3639
????GB/T8713
??????????DIN2391-2
????HK15-2000
????????? Uses
?????????????е???????豸?????????
?????? ??????
????
| ?????? |
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| ???? / ? |
BK |
????????????????????????????????к?С????? |
| ???? / ?? |
BKW |
??????????????С?????????????????????????????????????Σ????磺??????????? |
| ??????
?????????????? |
BKS |
??????????? Ac 1 ??????????????????????? |
| ??? |
GBK |
??????????????????????????е??????? |
| ???? |
NBK |
??????????????????????????е????? | ????????????1
??????????????????:[(??-???)*???]*0.02466=kg/??(????????)
?????????????????????????????????????????????????????????????????????????????????????????С???????????????????????????????????????????????????????????,??????????????20#??45#??16MN??Q345??A/B/C/D/E????27SIMN??15CrMO??12Cr1MOV??10CrMO910??304??304L??316??316L??321??P11??P22??P91??T91.??й???GB8162-99?????GB8163-99????????????ù?????????GB3087-99??GB5310-85????????ˉ?ù??GB5312-8???ù??...
???????????0510-88264321??88223334 ???棺0510-88223334 ?????18921237777
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