Guizhou Changtong Electric Co., Ltd., established on 2005-09-26, Business scope includes legal,regulations,Those prohibited by the State Council's decision shall not operate;law,regulations,The State Council has decided to allow(approval)of,After approval by the examination and approval authority(approval)file management;law,regulations,The State Council has decided that a license is not required(approval)of,Market entities independently choose to operate.(Production,Sales:high pressure,Low-voltage prefabricated substation,High and low voltage switchgear(box),PLCcabinet,Computer room top cabinet,electric pole,Hardware accessories,Power transmission equipment,Busway;Development and design of complete sets of electrical appliances;Metal component processing;Plastic spray processing;hot dip galvanized;Bridge;Distribution Network Automation,Box type substation,Railway power supply automation,Research and development of intelligent equipment for power grid security and stability control,production and sales;Research and development of intelligent building equipment,production and sales;inflatable cabinet,Ring Main Unit,pole switch,Primary and secondary fusion switchgear,Power Electronics,Integrated distribution box(JPcabinet),High and low voltage electrical appliances,Production of environmental protection equipment,Sales and installation maintenance service;UPSuninterruptible power supply equipment sales;undertake110KVAnd the installation of the following electrical facilities,35KVMaintenance and testing of power facilities and below;Construction and maintenance of power system engineering;Mechanical and electrical equipment installation,Overhaul and Maintenance;Construction;Electric power intelligent transformation construction and operation and maintenance services;import and export trade.(Involved in licensing projects,It should be operated after obtaining the permission of the relevant department.))