得用8”风管。先算算，如果直径不够大，再大的排风量也白搭。

来源: 老子说两句于 2016-04-25 07:14:36 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.

Change Ad Consent