Sales of electrical equipment, sales of pneumatic power machinery and components, sales of mechanical and electrical equipment, sales of special equipment for environmental protection, sales of power facilities and equipment, sales of multi-components and wholesale power meters, retail sales of multi-components for power generation; sales of power electronic components: 1 appliances; sales of Yanji generator sets; sales of micro motors and components, retail of Xijin products: hardware, household appliances sales, winter, electrical equipment sales, distribution switch control equipment sales, cable management; machine and quilt equipment sales, Ji Lai Zero Sales of furniture and other accessories, sales of wholesale clothing and apparel parts and accessories; retail sales of clothing and apparel, sales of quality building materials; sales of construction materials; sales of building materials; sales of building decoration materials; sales of light cables: not allowed Each Copper Technology Group is limited to one final micro-finance without total penalty. Kuai Technology is subject to Piaopinjiduo's technical services, technology development and technical consultation, and can be independently opened with a business license in accordance with the law (except for projects that require approval according to law, technology promotion)