灰色塑料管，70年代末到95年左右代替铜管的材料

来源: yellowlemon 于 2013-04-15 08:13:15 [博客] [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.