有一部分非名牌电梯经过维修后，原器件品牌混杂，或者名牌电梯带病运行，存在发生故障的安全隐患。
After some non-famous elevator repairs, the original brand hybrid device, or to stop the operation of brand lift. the failure of existing safety problems.
有一部分非名牌电梯经过维修后，原器件品牌混杂，或者名牌电梯带病运行，存在发生故障的安全隐患。
After some non-famous elevator repairs, the original brand hybrid device, or to stop the operation of brand lift. the failure of existing safety problems.
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