Do it by youself, $2000 will be enough. * d0 Z( n$ r. J4 G9 K8 X6 r0 ]; G `/ @! T+ ^+ Y6 [& A4 }
Before snow coming, change it right away. & b1 B8 H! v& f5 Ktradesman 发表于 2009-11-16 12:30 PM
& m* F" ?9 k+ n7 J ; j7 @! B. q* B. [+ W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