The registration address of dong zhong hong seng materials ltd. Is at wong jiang town, dong zheng city, guangdong province the registration authority is the market supervisory authority of the city of dongchung at 10th street, 3 rooms 301, with legal representatives and general projects: manufacture of high-performance fibres and composites; sale of high-performance fibres and composites; manufacture of synthetic materials (without dangerous chemicals); manufacture of synthetic fibres; sale of synthetic materials; sale of synthetic fibres; development of new materials; manufacture of ecological materials; sale of specialized chemical products (without dangerous chemicals); sale of technical services, technical advice, exchange of technology, transfer of technology and extension of technology; production of daily masks (non-medical); sale of daily masks (non-medical); production of labour protection supplies; sale of labour protection supplies; production of special labour protection...