General Projects: Engineering and technical research and experimental development; Mining machinery sales; Mining machinery manufacturing; Special equipment manufacturing( Excluding licensed professional equipment manufacturing); Agricultural machinery services; Machinery and equipment sales; Machinery and equipment rental; General mechanical equipment installation services; Mechanical equipment research and development; Wood and bamboo processing machinery manufacturing; Construction machinery manufacturing; Agricultural, forestry, animal husbandry and fishery machinery parts manufacturing; Special machinery manufacturing for building materials production; Construction machinery sales;Agricultural machinery manufacturing; Foreign contracting projects; Construction machinery and equipment rental; Manufacturing of metal parts for construction; Processing of timber and timber components for construction; Special equipment sales; Sales of agricultural, forestry, animal husbandry and fishery machinery parts; Gas compression machinery sales; Gas compression machinery manufacturing; Wood and bamboo processing machinery sales; Sales of hydraulic power machinery and components; Hydraulic power machinery and components manufacturing; Industrial Engineering Design Services; Engineering Management Services; General parts manufacturing; Metal forming machine tool manufacturing; Manufacturing of machine tool functional components and accessories; General equipment manufacturing( Excluding special equipment manufacturing); Metal cutting machine tool manufacturing; Pneumatic power machinery and components manufacturing; Manufacturing of amusement equipment for ordinary open-air amusement parks( Excluding large amusement facilities); Sales of amusement equipment in ordinary open-air amusement parks; Agricultural machinery sales; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery; Agriculture、 Forest、 Mu、 vice、 Sales of specialized fishing machinery; Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion; Installation of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery、 repair; Wood processing; Import and export of goods; Technology import and export( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)