... powder coated,keep 30years for color 3005 aluminum alloy manual,electric,remote control anti-weather anti-thelf 1,Structure of roller shutter ... , gream and also customized as need.10, surface treating: powder coated. (keep color 30years under sunshine and rain)11, tubular motor ... , anti-bad weather, safe, quiet, luxury.13, packing: one set roller shutter be packed in a 16mm thinckness wooden case which ...