Repairing and maintenance of common area electricity supply system, lighting, filter of air-condition and ventilation system.
公用配电装置、电源照明、空调滤网及排风装置等常规的维护及维修。
Repairing and maintenance of common area electricity supply system, lighting, filter of air-condition and ventilation system.
公用配电装置、电源照明、空调滤网及排风装置等常规的维护及维修。
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