Do it by youself, $2000 will be enough.& F7 m% F9 {3 S9 M+ V+ H
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Before snow coming, change it right away. / a8 o4 w; J- Q: u, Ttradesman 发表于 2009-11-16 12:30 PM
_/ v x) m) z$ \* c5 A $ w- \. t2 P# t; R* G还是别自己干了吧, 这要是漏水可就麻烦了. 另外还需要爬高, 总觉得危险