Shengli Oilfield Dongrun Machinery Engineering Co., Ltd., established on 2007-07-27, Business scope includes petroleum mechanical engineering;Drilling engineering accessories,building materials,Electronic product development,production and sales;Drilling mud technical service;network engineering(without internet);Environmental Engineering;Petroleum machinery,Electrical Equipment,Offshore platform diesel engine,electric motor,Distribution Cabinet,Maintenance and sales of ground blowout prevention systems;Oil pipeline anticorrosion and insulation;steel,rubber,Instrumentation,pipe,hardware tools,Wire and Cable,Chemical Products(Free of dangerous goods and precursor chemicals),safety protection facilities,Fire equipment,fire door sales;Corrosion repair of pipe fittings;software development;Oil well technical service;Pump sales and repairs;pipeline construction(without pressure piping);Purchase of waste materials;cable protector,plastic products(Does not contain medical),Anti-corrosion pipe fittings,centralizer,Production of Petroleum Lined Pipe and Flexible Composite Pipe,Sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)