?????????????
????????????????
????????????????????????????????????Ч???????????????????????ì????й?????Э??????????????????????????????????????40.7??
???????????????
22*2200*3570
13*3040*5600
18*1800*7330
18*1800*7330
???????????????
????????s/??b??
??????????????????????????????????????????????????????????????????????????0.6-0.65??????????0.65-0.75???????0.84-0.86??
???????????????14??16Mnq????????嶨?????????
