Shanghai AOTAISI Chemical Co., Ltd. was established in 2005, and changed from a limited liability company to a company limited by shares in 2006. The company developed rapidly. After several years of development, the company has strong technician group, adequate technology and management system now. Our major production is synthetic rubber, it includes NBR?SBR?Butyl rubber?Br and so on.Besides our company combines paraffin wax , Leathe rand Textile and water treatment chemical industry, which is a huge chemical industry company with reasonable product structure