Reinforced aluminium extruded double layer slat (many colors available). This product was designed to face extreme conditions: windproof and anti burglars highest resistance. Available in 56mm Available colors: All the ral color code available Very high resistance to corrosion and sun, with a surface treatment tested for 15 years of use without any color change. Our roller shutters are only aluminium made, for the best resistance to weather conditions, burglary attempts and wind. We also supply entire roller shutters with electric (remote controlled or switch commanded), or manual (crank, straps, ...) transmissions. China france shutters is able to help you for the exportation procedures, anywhere in the world. We only provide best quality shutters and accessories. The cost is also a key point, but for shutters which have to stay at least 15 years on a window, only the quality can make a real difference.