... ) 4.Packing:Plywood Case 5.Delivery time:7 days Industrial Rapid Roller Door1.Control systemsJapanese Mitsubishi Inverter, PLC and ... SNMA or SEW.3.Door construction --Doorframe use cold-roll steel sheets of Shanghai Baosteel,2mm thickness,paint under conditions ... and static-free,colour optional. --Curtain material adopt high-density industrial fabric coating, 0.8mm thickness, yellow, blue, red, white, ...