... ,high light transmission,aslo with good weather,impact,easy for drilling Polycarbonate crystal sheet of WEIERSHA be formed with ... be by clients either.PC crystal sheet application1-Day lighting for building roofing/wall;2-Decorating,advertising, Display Design;3 ... insulation engineerings as expressways,factories,etc..Portability: Easy for handling and drilling,wo't be breakage whencutting, simple and ...