美国不少地方就是现在水管线路老铅污染问题严重，网上可以查一下

来源: ZHUOYAO 于 2018-09-25 13:31:14 [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.