Coles (Tianjin) Electric Heating Technology Co., Ltd., established on 2013-11-01, Business scope includes electric heat tracing,electric heating cable,electric heating equipment,Electric heating pipe,Electromagnetic induction heating equipment,Electromagnetic induction heating pipe,Research and development of explosion-proof electrical products and accessories,manufacture,Sales,Install,repair,Technical Services(country restrictions,Except where prohibited);Import and export;Electric heating technology,Inductive technology,automation technology,Smart oilfield technology research and development,Promotion service;Construction labor subcontracting(Except labor dispatch);transformer,Inverter,Smart Control Panel,automation equipment,Oil exploration and storage and transportation professional equipment,Petrochemical professional equipment and other mechanical equipment,skid mounted,Heating and heat exchange equipment,Instrument Manufacturing,research and development,Install,repair,Technical Services;Anti-corrosion insulation project;electric heater,Control cabinet,Pipeline valve,heating equipment,pressure vessel,seal assembly,tubing,steel,electronics sales;Network technology service;Petroleum Production Technical Services;electrical engineering,Petroleum engineering construction;Carbon Crystal Carbon Fiber Electric Heater Heater,Graphene Electric Heater Heater,Electromagnetic hot water boiler,Resistance hot water boiler,Research and development of high and low pressure electrode boilers,Production,Sales;Photovoltaic power generation equipment,Heat storage system equipment,Research and development of industrial battery equipment,Production,Sales.(Special equipment in the above business scope shall be operated after obtaining permission from the special equipment safety supervision department)(Items subject to approval by law,Business activities can be carried out after approval by relevant departments)