Quick action high speed roller shutter

High Speed Roller Shutter Door Overview Aluminum hard fast door(Industry roller shutter) becomes more and more popular for manufacturers and individuals user in recent years. You may see this fast speed door every single day,But you may not ensure why you need it,High speed door offers the best convenience in production process,transporting,Save your time means save your money! Technology Category: Technical Paramerers Useage: Widely used in Hospital rooms,Resting room,Operation rooms. Size: Maximum size:W4000*H4000mm exceed this range according to the site specific production process. Opening&close speed: 0.5-1.5m/s Structural material: 1.…