we are a professional manufacturer of revolving doors in Chinawe supply 2 wing/ 3wing/ 4 wing revolving doors and crystal revolving doors, widely used for star hotels, office buildings, administrative buildings, shopping malls and top apartments. we are Beijing 2008 Olympic Games Supplier of Revolving Door. and our Products are certified by ISO 9001:2000, CE, UL. which ensures the quality and safe performances.