... ) 4.Packing:Plywood Case 5.Delivery time:7 days Industrial Rapid Roller Door1.Control systemsJapanese Mitsubishi Inverter, PLC and ... and static-free,colour optional. --Curtain material adopt high-density industrial fabric coating, 0.8mm thickness, yellow, blue, red, white ... ,as you obstruct the infrared ray,it stop. Thirdly,our door aslo install emergency stop equipment industrial rapid roller door