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电梯保修通常涵盖什么?

Ask Time: 2022-09-12
Answer
保修通常涵盖约定期限内确认的制造缺陷,但须经过正确的安装、操作和维护。消耗品、滥用和未经授权的更改通常不包括在内。
Answer Time: 2022-09-13

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