General Projects: gas、 Liquid separation and purification equipment manufacturing, gas、 Liquid separation and purification equipment sales, Direct drinking water equipment sales, Home appliance research and development, Home appliance manufacturing, Home appliance sales, Home appliance parts sales, Home appliance installation services,Household appliance repair, Daily household appliances retail, Manufacturing of special equipment for environmental protection, Sales of special equipment for environmental protection, IoT device manufacturing, IoT device sales, Manufacturing of special machinery and equipment for water resources, Manufacturing of new membrane materials, Sales of new membrane materials,Office equipment sales, Office equipment supplies sales, Office equipment rental services, Security equipment sales, Smart home consumer device sales, Smart home consumer device manufacturing, furniture sales, Building materials sales, Software Development, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Import and export of goods, Technology import and export, Import and export agent, Gas appliance production。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations) Licensed Projects: Freshly prepared drinking water, Gas burner installation、 repair, Inspection and testing services, Production safety inspection and testing。( 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.)