... ,000m2 3.Workers: more then 50 Greenhouse Polycarbonate Sheet used for swimming pool Specifications:1) Thickness: 4mm, 6mm, 8mm, 10mm, ... 5. Instruments and meters, and military industry.6. High class indoor decoration, such as walls, windows roofs and screens.7. ... forming.7. Sound Insulation: Good sound insulation. First choice for materials of insulation protective screen in highways in China and ...