本帖最后由 移民电工 于 2010-12-21 22:15 编辑 7 ]2 ~' h, l; H r
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This is a horizontal furnurs mount on the top of building and intake air form outsid of building, I think you can not fix it by yourself! " ~+ _+ ~- V9 d% j& p4 y5 P6 O9 i W; p# }' c* [ x9 ~These kinds of device need be cleaning and maintaining before winter season.