The registered address of kunshan physics technology ltd. Is located in room 304, yangtze nam road, yangtze, quinshan development region, and is the administrative approval authority of the city of kunshan, represented by a legal person, and includes the development and sale of purification equipment; the sale of purification products, water treatment equipment, mechanical and electrical equipment, dust removal equipment, hardware accessories, electronics products, filters, filtering equipment and accessories, the provision of related technical services and after-sale services; mechanical and electrical engineering, dustless engineering, architectural engineering, decoration works, anti-corruption works, consulting, design and construction of preservation works; and import and export of goods and technology. (projects subject to legal approval may not operate without the approval of the relevant department)