General Projects: fan、 Fan Manufacturing, fan、 Fan Sales, Mechanical and electrical equipment manufacturing, Machinery and equipment sales, Mechanical parts、 Parts Sales, General mechanical equipment installation services, Mechanical and electrical equipment sales, electronic、 Mechanical equipment maintenance( Excluding special equipment), Metal product sales, Sales of power electronic components, Electrical equipment sales, Pump and vacuum equipment manufacturing, Pump and vacuum equipment sales, General equipment manufacturing( Excluding special equipment manufacturing), Special equipment manufacturing( Excluding licensed professional equipment manufacturing), General parts manufacturing, Mechanical parts、 Parts processing, Electronic component manufacturing, Electronic components and electromechanical assembly equipment manufacturing, Instrument Manufacturing, Intelligent instrument manufacturing, Instrument repair, Instrument sales, Non-ferrous metal casting, Non-ferrous metal alloy sales,Metal material manufacturing, Non-ferrous metal rolling processing, Metal cutting services, Manufacturing of special equipment for environmental protection, Sales of special equipment for environmental protection, Industrial Design Services, Industrial Engineering Design Services,Labor Services( Excluding labor dispatch), Technology intermediary services, Metal structure manufacturing。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations)