Our factory professional produced hollow polycarbonate sheet solid sheet and corrugated sheet more than for 4years.Poly carbonate sheet is a new kind of building material from Bayer Makrolon,which is strength, heat insulation and good light transmission. Due to their excellent advantages, such as high impact resistance, good head good insulation, sound insulation, light weight, flame resistance , weather resistance, easy cutting ,good machining capability and strong plasticity, all products provide 5-10 years warranty