Standard polycarbonate rolling shutter is always customized built in our modern factory, which combines the transparency and strength of polycarbonate slat with aluminum stainless steel tube. It is a popular design for applications which need security as well as transparency. HOFUL polycarbonate rolling shutter are widely used for commercial shop and shopping center Poly-carbonate is a man-made material that's especially suitable for roller shutters. Like glass, it's transparent, but unlike glass, it's very hard to break.