chongqing maigao elevat co. ltd.,elevator-pg电子试玩

��դ��ߵ�� ʱ�䣺2017-11-02

1. before installing or removing, by the competent authorities in accordance with the specification requirements according to the actual situation of the construction site of the work plan in detail, and the technical tests and monitoring personnel designated to all staff in the team before operation.
2. in accordance with the provisions of the ministry of construction, installation and demolition of staff, should be professional team and the relevant departments of the city issued by the qualification certificate personnel, and set up special command.