Shangan (Beijing) Science and Technology Development Co., Ltd is a limited liability company with independent corporate capacity. It is a modern technology enterprise organized by the former Beijing Shang an Architecture Materials Plant, and it also is a professional enterprise engaged in the research and development, production, sale and service of new-typed water-seal materials .The enterprise is the first unit in Beijing that has passed acceptance and got professional producing license issued by the State Quality and Technical Supervision Bureau and hence successfully registered the brands of both