Tianjin Ruihang Oilfield Technical Service Co., Ltd., established on 2007-01-09, The scope of business includes maintenance of oil drilling equipment,detection;tubing,Casing Repair,to clean,detection;Intelligent equipment and intelligent system,Early warning terminal equipment,fire control system,Research and development of servers and supporting software and hardware products for industrial monitoring systems,Integrated Service and Sales;Steel structure products,Electronic equipment sales and installation;Electronic Engineering and Intelligent System Design,Construction and Maintenance;Petroleum equipment and accessories,steel,building materials,wood,Office Supplies and Equipment,Stationery,Daily necessities,Wujinjiaodian,furniture,Electrical Equipment(Cars not included),Communication equipment,Measuring tool,Instrumentation,building decoration materials,Chemical Products(flammable,Explosive,Precursors excluded),Computers and Accessories,wire rope,valve,pipe fittings,bearing,refrigeration equipment,Compressor and accessories,Clothing and shoes,Sales of labor insurance supplies;Design and sales of gifts and crafts;Own Equipment Rental Service;Car rental;Owned Vessel Charter;Indoor and outdoor decoration;Civil Engineering Construction;Installation of fire fighting equipment,repair,detection,Sales;Provide labor services for enterprises;Conference Services;Warehousing Services;Consulting services related to the above(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)