?????????????????,????,???????????????????????????????????????,??12.49?????????????????,??? 1.13???????????m3,?1.118??m3 ,?? 40 ????????????????????

????????????,?????????????????????,?????200~300kg/??400kg/???,?,?????????????????????,?????

???????:??? “??????????”????

?? ????????!????????4000?

????:1???????????:???????50????

2???????

3???????

4?????????

5????????????????

?????????????????,????,???????????????????????????????????????,??12.49?????????????????,??? 1.13???????????m3,?1.118??m3 ,?? 40 ????????????????????

????????????,?????????????????????,?????200~300kg/??400kg/???,?,?????????????????????,?????

???????:???