... 10yrs warranty 3. ISO 9001,ROSH 4. 4mm--10mm PC hollow sheet is a very good combination property engineering plastic with excellent ... lighting, anti-UV, fire-retardation and so on. The PC hollow sheet Widely used in public & civil construction of the lighting sunshade ... ) High transparence.3) Easy to assemble.Specifications:1) Twin wall hollow sheet; Thickness: 4mm, 4.5mm, 5mm, 6mm, 8mm, 10mm, 12mm2) ...