... colors sound &heat proof, burgary proof motorized rolling blinds Motorized rolling blinds Material is Using 97% purity aluminum ingot ... power coating; keep color 15 years Tubular motor SLM45,SLM59,SLM92,Outside motor Operator way: Electric with Manual, pure electric ... treat :powder-coating / galvanized Guarantee period : 2 Years Rolling shutter function: Anti-sunlight, anti-rust, anti-lacerated , ...