Sichuan green island environmental science and technology ltd. Is registered at 8th street, 11th street, no. 1, red sea building, wuhuang city, with the registration authority being the market supervision authority for the wuhou district, with legal representatives representing zhang fengcheng and covering software development; sales: ventilation equipment, refrigeration equipment, household appliances, fire-fighting equipment, air purification equipment, wetting and wetting equipment, heating pipes and equipment, building smart cleaning equipment, plumbing fittings, hardware and electrical equipment, hotel supplies, construction materials, electrical appliances, lamps, metal materials; electronic automation sets and electrical components, transmission high-voltage low-voltage units, interior and exterior engineering designs and construction works; electrical equipment installation works; electrical equipment installation, maintenance services; firefighting equipment repair and maintenance services; plumbing installation maintenance services; information systems integration; information technology advisory services. (projects subject to approval according to the law may not operate without the approval of the relevant department)。