Production of sterilization equipment; sales of sterilization equipment. General projects: manufacturing of household appliances; sales of household appliances; manufacturing of auto parts and accessories; manufacturing of refrigeration and air-conditioning equipment; sales of refrigeration and air-conditioning equipment; Internet sales (except for the sale of goods requiring licenses); technical services, technology development, technical consultation, technology exchange, technology transfer, technology Technology promotion; enamel product manufacturing; enamel product sales; household appliance installation services; metal material sales; information consulting services (excluding licensing information consulting services); professional design services; production and sales of indoor environment conditioning equipment, refrigerators, freezers, refrigerators, freezers and their spare parts.