好问题还没想到过。搞不好门确实容易脱落，可更换磨损滑轮。如上下导轨不松动门不会跌落。防患入手。

来源: IEbird 于 2024-04-21 07:38:01 [旧帖] [给我悄悄话] 本文已被阅读：次

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