Daqing Tiandezhong Petroleum Technology Co., Ltd., established on 2012-01-04, The scope of business includes pressure piping components:Bclass:Manufacture of wellheads and Christmas trees;pressure piping components:B1class:Gate valve,Shut-off valve,check valve,throttle valve,ball valve,Manufacture of Butterfly Valves;Processing and manufacturing of oil drilling accessories and equipment repair;Pressure piping special components:Aclass:Wellhead restraints and Christmas trees,Manufacture and sales of choke and kill manifolds(For details, see the special equipment manufacturing license of the People's Republic of China);Manufacturing and sales of seals and rubber products;water treatment equipment,the fence,fence,Instrumentation,bearing,Explosion-proof electrical equipment,Electric heating belt,Electric heating cable,Electric heating system and accessories,Electric heating tube,Wire and Cable,Automation control equipment,motor,Manufacture of metal seals,Repair and Sales;sucker rod,Oil well pump repair;Mechanical equipment and accessories,Processing and manufacturing of motor vehicles and spare parts;Sales:Oil drilling equipment and accessories,laboratory equipment,steel,Chemical Products(Does not contain dangerous goods and highly toxic substances);plastic products,Manufacture and sales of nylon;fastener,Standard Parts,Special equipment for oil drilling,canopy,canvas,Production, processing and sales of downhole tools;construction machinery,Technical research on special equipment for environmental protection,Production, processing and sales;Industrial and mining accessories,Sales and maintenance of pump accessories;Production of mechanical equipment and accessories,processing;concrete products,Production and sales of cement products;Technical Research on Downhole Operation Platform,Manufacturing and sales;Manufacture and sales of oil production equipment;Research and development of power distribution switch control equipment,Manufacturing and sales;Physical Cleaning of Special Equipment for Oil Drilling and Production,Transport Equipment Cleaning,pipe cleaning;Downhole operation technical service,Environmental Science and Technology Research Services;pipe repair;Sanitation machinery and equipment,Steel grating production,Processing and Manufacturing;Construction machinery and accessories,Diesel Engine Parts,Production and sales of elevator accessories;Import and export,Technology Import and Export;Downhole tool research and development;Ordinary road freight transport;Product chemical characteristics inspection service,Product Physical Characteristics Inspection Service.