... shutter,we have slat type 33mm,37mm,49mm,55mm,65mm,77mm,100mm or as clients' request aluminum shutter,roller shutterAll the aluminium roller shutter ... are controlled by remote control, switch or manual mode.Specified size aluminium roller shutter could be custom made. Roll shutters ... electrically from the inside. It is one kind of shutter with much function such as energy saving, theftproof, rainproof ...