????????Q420q????????????

????Q420q???????????

??????????????????????????????г??????????????????????????????;????????????????
?г????????????????г??????????????????????????????????????????????????????
????????????????????????????????????????????????????????????????????????????
??????????????????????

Q420q??????????????????
50*2200*8000+ 32??
60*2200*7000+ 75??
50*4030*555+ 98??
70*2200*9500+ 32??
80*2200*8000+ 56??

Q420q??????????????????
?????????????????????????????????????? ????λ????????????????????(??????????)??????????????????????????????????????????С??1.50%???????н?????????????????????? ?????????1.50%??2.49%??2.50%??3.49%??3.50%??4.49%??4.50%??5.49%????????????????????д??2??3??4??5???????????磺????????????????????????0.30%??0.95%??0.85%??1.05%??????????S??P????????0.035%?????????????30CrMnSi??????

???????????????лл   ?? ?????  ?????Q420q???????????
????????Q420q????????????????