... 4.Export to Japan Polycarbonate Sheet Transparent Colour Swimming Pool Roof Materials Specifications:1) Thickness: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm ... .2, 1.4, 1.7, 2.1, 2.5, 2.8, 4.37 5) Colors: clear, lake blue, green, blue, opal ... .7. Sound-insulation walls in expressways and urban overhead highways.8. Agricultural greenhouses and raising sheds.9. Lighting of factory buildings ...