General Projects: Motor vehicle repair and maintenance; Auto parts wholesale; Auto parts retail; Car decoration products sales; Manufacturing of special equipment for oil drilling; Sales of special equipment for oil drilling; Machinery and equipment sales; Mechanical equipment research and development; Special equipment manufacturing( Excluding licensed professional equipment manufacturing); Machinery and equipment rental; General equipment repair; General equipment manufacturing( Excluding special equipment manufacturing); Communications equipment sales; Special equipment repair; Electrical equipment repair; Instrument repair; Communications equipment repair; Car trailer、 Call for help、 Tow Removal Service; General mechanical equipment installation services; Gears and gear reduction、 gearbox manufacturing; bearings、 Gear and transmission component manufacturing; bearings、 Gear and transmission parts sales; Gears and gear reduction、 Transmission Sales; Hardware product retail; Lubricant sales; Metal cutting services; Engineering and technical services( Planning Management、 Survey、 design、 Except supervision); Oil and gas technical services; Resource recycling technology research and development; Solid waste management; Domestic waste treatment equipment manufacturing; Sales of domestic waste treatment equipment; Hydraulic power machinery and components manufacturing; Sales of hydraulic power machinery and components;Labor Services( Excluding labor dispatch); Industrial robot installation、 repair; Computer and office equipment repair; Mechanical parts、 Parts processing; Mechanical parts、 Parts Sales; Construction machinery and equipment rental; Agricultural, forestry, animal husbandry and fishery machinery parts manufacturing; Sales of agricultural, forestry, animal husbandry and fishery machinery parts; Sales of rail transit engineering machinery and parts; electronic、 Mechanical equipment maintenance( Excluding special equipment); Spraying processing; Professional cleaning、 Cleaning、 Disinfection services; Mining machinery manufacturing; Mining machinery sales; Rubber product manufacturing; Rubber product sales; Plastic product manufacturing; Plastic product sales; Installation of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery、 repair; Agriculture、 Forest、 Mu、 vice、 Sales of specialized fishing machinery; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery; Special equipment sales; Generator and generator set manufacturing; Sales of generators and generator sets; Metal structure manufacturing; Metal structure sales; Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales; Rental Services( No licensed rental services); Non-residential real estate rentals; Transportation equipment rental services; Small and micro passenger car rental services; Car Sales。( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license) Licensed Projects: Ship repair; Onshore oil and gas extraction; Construction labor subcontracting; Construction project construction; Professional construction work; Installation, modification and repair of special equipment; Electrical installation services; Special equipment manufacturing; Road freight transport( Does not contain dangerous goods); Power transmission、 powered by、 Installation of receiving power facilities、 Maintenance and testing; Road motor vehicle production。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business projects are subject to the approval documents or licenses of relevant departments.)