?????????????
4??1500??8000 21??
10??2000??8000 70??
4??1500??800035??
4??1500??8000 80??
8??1800??8000 70??
6??1800??8000 80??
?????????????
??? ????С?????涨???????????????????С?????????????ж??????磬???ú???????????й涨??????????? 10 ????????????? 2-4m ???????塣 4m ????????????????????????????? 2m ??
??????????????
???????????ú????????????????Ч?档????????????????????????????????????????????????????2000???7000?????????2012??74350??????????????????????????????34.46??????68.21????????????????????????ú???????????????????????????λ????????????г???????????????????????????????
????????
??????????????????????????????????????????????????????α????????????????????????????????????????????????λ??
?麣??????5.0*1.5*6??Q420q????????????????
