If handy, you can open up two covers on the top, even it said...

來源: 老金工 於 2019-09-07 10:08:10 [] [舊帖] [給我悄悄話] 閱讀數 : (70 bytes)
本帖於 2019-09-07 10:09:02 時間, 由普通用戶 老金工 編輯

"maintenance free". Acid inside, be very careful!

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