Pro Precast Accessories
Problem: the hoistway lighting circuit with safe ultra-low voltage power supply is adopted in the elevator distribution box, and BV and other non double insulated wires or cables are laid through steel pipes after the safety isolation transformer.
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At present, we should have stripped more than 80000 cubic meters of soil in the whole competition area. We have made a drainage channel to lead the water to the
General contracting qualification for construction: construction, municipal administration, electric power, electromechanical equipment, highway, railway, port and waterway, water conservancy and hydropower, mining, metallurgical quality, chemical petroleum and communication. Tel: 13881983131