Kunshan Hengbang industry limited company located in Kunshan city Jiangsu province ,about 50 KM away from Shanghai .We are a professional door company ,we have develop design product and install doors any industrial doors our major product in the production line is :Fire protect roller door ,PVC speed roller door,Idustrinal sectional door,Fireproof steel roller door,Wind shutter door and many other produtcs.At the same time we can make any different size doors for customer and we can design any doors base on customers quest.