... ,RoHS,SGS certificate 4)manual,wireless available Principle SHIDAI electric roller blinds system use 220V tubular motor (A built-in and external ... choosed 50mm, 70mm, 80mm or 110mm, underbeam made by white paint luxurious heavy rail, top-grade quality. Bracket chooses white ... paint high strength alloy steel, strong anti-bending and anti-shearing, ...