... .5, operation ways: hand crank, electric.6, control system: remote control, switch, hand crank. 7, Model of shutter slat: 32mm, 43mm 8 ... , material of shutter slat: aluminum alloy 3005.9, ... and electric. 12, function: insulated, anti-bad weather, safe, quiet, luxury.13, packing: one set roller shutter be packed in a 16mm ...