General Projects: Sales of wind turbines and parts; Special equipment manufacturing( Excluding licensed professional equipment manufacturing); Machinery and equipment sales; Hardware product manufacturing; Hardware wholesale; Electronic components and electromechanical assembly equipment manufacturing; General mechanical equipment installation services; Manufacturing of special equipment for daily necessities production; food、 liquor、 Manufacturing of special equipment for beverage and tea production; Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion; Underwater system and operation equipment manufacturing; Sales of underwater systems and operating equipment; Manufacturing of special machinery and equipment for water resources; Metal processing machinery manufacturing; Gas compression machinery manufacturing; Sales of pneumatic power machinery and components; Gas compression machinery sales; Hydraulic power machinery and components manufacturing; Pneumatic power machinery and components manufacturing; Hydraulic power machinery and components manufacturing; Sales of hydraulic power machinery and components; Mechanical parts、 Parts processing; Manufacturing of special machinery for tunnel construction; Agricultural, forestry, animal husbandry and fishery machinery parts manufacturing; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery; Sales of agricultural, forestry, animal husbandry and fishery machinery parts; Agriculture、 Forest、 Mu、 vice、 Sales of specialized fishing machinery; Mechanical parts、 Parts Sales; Agricultural machinery sales; Mining machinery sales; Construction machinery manufacturing; Construction machinery sales; Sales of special machinery for tunnel construction; Machinery and equipment rental; Agricultural machinery rental; Construction machinery and equipment rental; Mechanical equipment research and development; Metal product sales; Sales of intelligent agricultural machinery and equipment; Sales of intelligent basic manufacturing equipment; Metal structure sales; Sales of metal wire ropes and their products; Pump and vacuum equipment sales; General equipment repair; Deep-sea oil drilling equipment manufacturing; General equipment manufacturing( Excluding special equipment manufacturing); Manufacturing of metal chains and other metal products; Sales of metal chains and other metal products; Steel rolling processing; Metal tool manufacturing; Deep-sea oil drilling equipment sales; Engineering and technical research and experimental development; Metal tool sales; Domestic trade agent; Special equipment repair;Agricultural machinery manufacturing; Agricultural machinery services; Installation of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery、 repair; Marine engineering equipment manufacturing;Marine engineering equipment sales; Engineering Management Services; Development of key supporting systems for marine engineering; Pump and vacuum equipment manufacturing; Manufacturing of special equipment for oil drilling; Sales of special equipment for oil drilling; Lubricant sales; General valve and plug manufacturing( Excluding special equipment manufacturing); Valves and plugs sales;Valve and plug development; Agricultural professions and auxiliary activities; Manufacturing of geological exploration and seismic instruments; Sales of geological exploration and seismic equipment; Manufacturing of special equipment for geological exploration; Sales of special equipment for geological exploration; Spraying processing; Metal material sales; Sales of marine environment monitoring and detection equipment; Sales Agent;Earthwork construction; Special equipment sales; Sales of rail transit engineering machinery and parts; General cargo warehousing services( Does not contain hazardous chemicals or other items that require licensing and approval); Rubber product sales; Auto parts retail; Car Sales; Used car brokerage; International freight forwarding; Technology import and export; Import and export of goods; customs declaration business。( 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: Road freight transport( Does not contain dangerous goods)。( 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.)