在radon高发地带还是要做的，radon是累积的，新地下室含量低，不表示一直达标。

来源: katies 于 2016-12-06 07:36:27 [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