... quality assurance. 2.weather resisitant 3.sound insulation. Diamond polycarbonate sheet features: 1. Width is from 1220mm ... passages and subway entries ,walkways.3. Advertising lamp boxes ,sign board4. Bank ATMS. Bullet resistabce material5. Conservatories ,agriculturall ... plates.8. Airplanes trains,ships ,vehicles, motor boats. Diamond polycarbonate sheet features of prouducts:1. Light transmission:the ...