... supplier of all types of elevators ,escalatorsand parking system with own factory covering the area of 147,600 square ... First warkshop:2700 square meters,second warkshop:16000 square meters )with the annual capacity of 40,000 sets elevators, escalators, ... needs. At present, the modular; intelligent and extensive system, multi-functional serial interface, long-distance monitor technology etc. belong to ...