?? ????????!?4000????????
????:1??????:??????
2???qt???????
3??????
4??????????
5?????????
?????????????????,????,????,??????????????????12.49??,??? 1.13???m3,???????????????????1.118??????m3 ,???????????? 40 ???
?,????,?????????????????????200~300kg/??400kg/????????????????????,?????????????????????,??,??????
????????????:??????????????????