... month 4.50 production lines 5.Good qualities Specifications:1) Thickness: 4mm, 4.5mm, 5mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm2 ... hollow PC sheet is only about one twelfth at the same thickness3) Transparency: The light transmission of a 3mm solid PC ... used on curved roves and windows. The minimum radius of curvature of a PC sheet is 175 times of its thickness. Polycarbonate ...