Hebei Henglong Ruijia Technology Co., Ltd.

International Industry Category: Scientific research and technical services

International Industry Major Class: Technology promotion and application services

International Industry Middle Class: Other technology promotion services

International Industry Sub Class: Other technology promotion services

Oilfield technology development services； Development of computer software, hardware and auxiliary equipment、 Sale； oil wells、 well、 Gas well unblocking、 acidification、 Adjustment and drive、 Sand control、 Operation and electronic technology、 Software Application； Self-operated and agency import and export business of various commodities and technologies（ Except for goods and technologies that the state restricts companies from operating or prohibits import and export）； Industrial guar gum、 Industrial Hydroxypropyl Guar Gum、 Food grade guar gum、 Fast hydrating guar gum、 Refining chemical additives、 Water treatment additives、 polymer catalysts、 Polyacrylamide series initiators、 Oilfield fracturing additives、 Oil recovery additives、 Gas recovery additives、 Drilling additives、 Auxiliary for acidification、 silicone、 Organic silicon fluorine series products、 Power fittings、 electrical equipment、 Power transmission, distribution and control equipment、 Transmission and distribution line towers、 Electrical complete equipment、 Closed busbar、 Cable Tray、 insulator、 Electric iron accessories、 rubber products、 plastic products（ Not for medical use）、 Railway facilities and accessories、 Transportation facilities and accessories、 Petroleum Instruments、 fastener、 Mechanical Model、 kitchen equipment、 Water treatment equipment and accessories、 Petroleum machinery and equipment and accessories、 tool、 Well repair machinery and accessories、 tool、 Oil drilling equipment and accessories、 tool、 Wellhead equipment and accessories、 Downhole equipment and tools、 Industrial and mining equipment and accessories、 Other mechanical equipment and accessories、 Insulation materials、 waterproof materials、 seals、 glass products、 Transformer and accessories production、 Sale； Anti-pollution flashover coating、 Anti-corrosion coatings and engineering construction、 Production、 Sale、 Technical Services； Synthetic fiber manufacturing， Medical protective nonwoven fabrics、 antibacterial non-woven fabric、 meltblown cloth、 Filter cleaning supplies、 apparel、 Protective equipment for hotels、Ⅰ Medical devices（ protective mask）、Ⅱ Medical devices（ Protective equipment for medical staff） R&D、 Production、 Sale； Auto Parts、 Fracturing truck accessories、 Agricultural machinery and accessories、 Construction machinery and accessories、 Tractor accessories、 Diesel engines and accessories、 Mechanical products、 Mechanical and electrical products（ Excluding cars）、 Bearings and pump accessories、 Firefighting equipment and products、 Wires and cables、 Hardware tools、 building materials（ No wood）、 steel、 Plumbing equipment、 weighing instruments、 ceramic products、 Car decoration products、Watches, glasses and accessories、 lubricating oil、 Iron ore powder、 Titanium dioxide、 Metal materials、 sanitary ware、 Labor protection supplies、 Pipe fittings、 Instruments、 Electronics、 sporting goods、 Office supplies and automation equipment、 educational supplies（ No textbooks included）、 Daily necessities、 Home appliances、 furniture、 communications equipment、 Knitted textiles、 cosmetic、 Handicrafts、 Chemical products、raw material（ No hazardous chemicals、 Monitoring chemicals、 Precursor drugs） Sales； Split、 Central air conditioning design、 Sale、Install； Labor subcontracting（ Operate within the approved scope with qualification certificate）； Urban landscaping； Property Management； real estate development； Housing construction project； Vehicle rental（ No driver）、 Equipment rental、 Well site pad； Tarpaulin production、 Processing、 Sale； electrical appliances、 Electronic equipment testing、 R&D、 Production、 Sale； Anti-corrosion engineering construction and technical consultation； Borax、 potassium chloride、 Baking soda sales； General freight； Drilling fluid harmless biological treatment； Nitric acid、 sulfuric acid、 Sodium chlorate、 hydrochloric acid、 potassium permanganate、 Ether、 acetone、 Toluene、 benzene、 coal tar、 naphtha、 Crude benzene、 Sodium hydroxide、 Methanol、 ethanol【 Anhydrous】、 epoxy resin、 solvent oil【 Closed cup flash point≤６０℃】、 Epoxy paint curing agent、 aniline、 Ether、Potassium peroxydisulfate、 Ammonium peroxydisulfate、 silicone resin、 Alkyd resin、 Phenolic resin、 Potassium manganate、 Crude naphthalene、 rosin oil、 Raw rosin、 Ammonium fluoride、 n-Butanol、 Cyclohexanone、 amino resin、 Diepoxy diluent、 Unsaturated polyester resin、１．２－ Xylene、１．３－ Xylene、１．４－ Xylene、２－ methyl－１ Propanol、 Xylene isomer mixture、１．３－ Butadiene【 Stable】、 Propane、 Propylene、 LPG、 oxygen【 Compressed or liquefied】、 Acetylene、 phenol、 oxalic acid－４－ amino－Ｎ，Ｎ－ Dimethylaniline、 Thiourea、 Barium chloride、 Sodium hypochlorite solution、 Formaldehyde solution、 Sodium dichromate、 Synthetic resins containing flammable solvents、 paint、 Supplementary Materials、 Paint and other products［ Closed-loop flash point≤６０°Ｃ］（ No storage of business varieties） wholesale（ No storage）（ The hazardous chemicals business license is valid until２０２３ Year４ moon１２ day）； Undertaking（ build、 try） Power facilities； Power and Electric Power Engineering Research Services； Cleaning and maintenance of various pipelines； Communication base station facility leasing； House rental； Intellectual Property Agency Services； supply chain management。（ Projects that require approval according to law， Business activities can only be carried out after approval from relevant departments）

Chinese Industry Category: Basic Chemicals

Chinese Industry Major Class: Chemical Manufacturing

Chinese Industry Middle Class: Specialty chemical product manufacturing

Chinese Industry Sub Class: Chemical reagent and auxiliary agent manufacturing