Transparent polycarbonate rolling shutter door-- PC300 It will be a perfect choice for the applications which need high secutiry as well as transparency. PC300 offers top security together with the ultimate excellent visibility. As clear as glass, as strong as steel. It is ideal solution for following Applications: commercial shop showroom fashion shops jewellery shops airport banks club bars Others Polycarbonate rolling shutter door has many benefits as following: excellent visibility: 80-90% transparency safety and security: The Impact resistance performance of polycarbonate is 200 times stronger as ordinary glass, 30 times as organic glass. UV protection: Can effectively cut off 80% of the sun's ultraviolet Weather resistance:Still keep the physical indicatiors stability in the range of -40 to 120 °C Outdoor service life of 20 years, indoor life to 30 years. energy saving Sound insulation: 3-4DB better than glass Heat insulation: 10 times better than ordinary glass Advertising effect: 24 hours / 7 days Environment-friendly: Comply with ROHS, the PC could be recycled. Fire retardant and self extinguishing: flame retardan Class I Warranty: 5 years !