The Soochow machinery is the first unit in the country to have the production license of the mechanical and electrical safety valve, and the company obtained the People's Republic of China special equipment manufacturing license in 05 month of 2002. In September 2004, the National Nuclear Safety Bureau issued the license of the design of the national nuclear safety equipment for the people's Republic of China and the manufacturing license of the people's Republic of China on nuclear safety equipment. In 1998, on the basis of ISO9001 quality system certification, the company has obtained the certificate of the ISO14001 environmental management system and the ISO18001 occupational health and safety management system.