The registration address of the kowloon and drinking water equipment company ltd. In dongdong city, guangdong province, is no. 11, and the registration authority is the market supervision authority of dongjoon city, represented by zhang tiancheng, which operates in the design, assembly, sale, installation and operational maintenance of drinking water equipment, water treatment equipment, solar energy-saving heating equipment for heat pumps, direct drinking water systems, industrial super-purified and medium water reuse works, purification works, environmental works, sewage treatment works, electrical equipment; water system maintenance services and rental services; and corresponding filters, accessories, hardware construction materials and after-sale services for equipment. (projects subject to legal approval to operate with the approval of the relevant department)