本帖最后由 移民电工 于 2010-12-21 22:15 编辑 , i: N, g' n0 ~
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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! 2 {8 o2 S9 C6 [- m 1 M, x3 h) ^8 p E. b: PThese kinds of device need be cleaning and maintaining before winter season.