... anti-thelf 1,Structure of roller shutter.(1) End Cap, (2) Bearing Bracket (3) Ball Bearing ... .9, color of shutter slat: white, gream and also customized as need.10, surface treating: powder ... coated. (keep color 30years under sunshine and rain)11, tubular motor : 15years working life. ... 50N.m standard.; 50N.m it's comebine one of manual and electric. 12, function: insulated, anti-bad ...