記得以前有的thermostat封片的周邊有一圈橡膠封圈。老化後就會脫落成一粒粒的黑橡膠。

來源: QYZ 於 2016-12-07 07:46:04 [舊帖] [給我悄悄話] 本文已被閱讀：次

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