???????? ??????? ????? ?????? ?????? ???????
?????? ?? ???? ?????? ????? ??????? ?????? ?????? ????? ???????? ?????? ??????? ??? ???? ?????? ????? ??? ??? ????? ?????? ?? ????? ?????? ?? ????? ????? grades.Chinatungsten ??? ???????? ?? ????? ??? ????? ?????? ?? ??????? ????? ???? ????? ??????? ?????? ????????? ???? ?? ???? ??? ???? ?? ?????? ?????? ????? ????? ???????? ??????? ?????:
| ????? ???????? ???? | ??????? g/cm3 | ????? HRA | ??? ??????? N/mm2 |
| YA85 | 14.5～14.75 | 87.5 | 2000 |
| YG11C | 14.2～14.4 | 86.5 | 2260 |
| 702 | 14.4～14.6 | 88.5 | 2800 |
| YK25 | 14.4～14.6 | 87.6 | 2600 |
| YK40.7 | 14.4 | 85.5 | 2400 |
????? ????? ???????? ?? ??? ????? ?????? ?????? ?????? ?????? ??? ?????? ??? ???? ???? ?? ???? ????? ??????. ??????? ??? ?????? ?????? ????? ???????? ????? ???? ??????? ??? ????? ????? ???????? ?????? ????? ????? ????? ????????? ???????? ????? ????? ????? ????? ????? ???????? ????? ???? ???.
p>????????? ???????? ?? ??????? ????? ??????? ????? ????????:? ????????? (??? ??? × ??? × ?????)
? ????? ????? ?? ??????? ?????????
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