现在严了,就是KN95 ,都不是医用口罩.都是防灰尘的.amazon就有卖的.

来源: ca2004 于 2020-05-18 13:21:04 [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