When used for a time, the lock may not be opened smoothly. Do not dip mechanical oil into the lock. Instead, slip some French chalk or pencil fines into it.
锁具使用一段时间后，会出现开启不顺畅的现象，不要往锁心内滴机油，将滑石粉或铅笔心的细屑滑入锁心内即可。
When used for a time, the lock may not be opened smoothly. Do not dip mechanical oil into the lock. Instead, slip some French chalk or pencil fines into it.
锁具使用一段时间后，会出现开启不顺畅的现象，不要往锁心内滴机油，将滑石粉或铅笔心的细屑滑入锁心内即可。
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