... CE,RoHS Size:customed design Insulated fuction Automatic Aluminum Roller Shutter Main color : White, cream..15colors (All kind of ... in vision will be off. Pure manual only for manual roller shutterManual crank, Length: 0.5m——2mSurface treaded: powder- ... -proo , radiation-proof , insulation.Save energy design, when the roller shutter closed, can saving 30% energy, obstructed 100% sunshine. Automatic ...