??????????????????????
4??1500??8000 90??
4??1800??8000 32??
5??1800??8000 21??
5??1800??8000 90??
6??1800??8000 35??
???????????????????
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????????????????????壬??????е????????????и??????????????и?? ??????1-150MM ?????1500-2200MM ????????????????д????????????????????????????????·?????????????鼰???????????????????? ???????.???????.... ???????У?????????? ????????????????????????????????????ж?????????????????????????塣SB????????徭?????κ????????????????????????????????????
?????6??3??????3.0*2*8???????????????????????????