General Projects: General equipment manufacturing( Excluding special equipment manufacturing), Heat production and supply, Energy Performance Contracting, Energy-saving management services, oven、 Furnace and electric furnace manufacturing, Carbon reduction、 Carbon conversion、 Carbon capture、 Carbon sequestration technology research and development, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Refrigeration、 Air conditioning equipment manufacturing, Machinery and equipment sales, Wholesale of kitchenware, sanitary ware and daily necessities, Solar thermal equipment sales, Refrigeration、 Air conditioning equipment sales, Pump and vacuum equipment manufacturing, General parts manufacturing, Direct drinking water equipment sales, Environmental consulting services, Research and development of waste heat, waste pressure and waste gas utilization technology, Technology import and export, Import and export of goods。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations) Licensed Projects: Installation, modification and repair of special equipment, Electrical installation services, Gas burner installation、 repair。( 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.)