General Projects: Sewing machinery manufacturing, Sewing machinery sales, Mechanical parts、 Parts processing, General parts manufacturing, Mechanical parts、 Parts Sales, gas、 Liquid separation and purification equipment manufacturing, General equipment manufacturing( Excluding special equipment manufacturing), Special equipment manufacturing( Excluding licensed professional equipment manufacturing), Mechanical and electrical equipment manufacturing, Textile special equipment manufacturing, Special equipment repair,Sales of textile special equipment, Machinery and equipment sales, Electronics sales, Metal cutting and welding equipment manufacturing, General equipment repair, Machinery and equipment rental, Motor and control system research and development, Electromechanical coupling system development, Mechanical equipment research and development, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Domestic trade agent, 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)