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