Polycarbonate crystal or anti-frost sheet Specifications: thickness: 4, 6, 8, 10, 12, 14, 16, 18, 20mm. Width: 1.22,1.56,2.1m Length: 5.8,11.8m Twin or triple walls Colors & specifications are according to clients' requirements. Packaging: Both surfaces are covered with PE film. Suitable for Long distance seaworthy transportation. Application: Wall & roof of green-house, shop mall & exhibition center, bus stop, telephone booth, signboard, insulation shield on expressway & highways, etc. For more products or information, contact or