... production assembly line Features:1)Light transmission: up to 85%.2)Impact resistance: 80 times that of glass and 15 times ... double layers and three layersProduct:We are a professional manufacturer ofPVC profilesPVC aluminum-plastic composite decorative boardsPVC outer wall decorative ... window boards, 150,000-square-meter multilayer shelf boards, 2,500,000-square-meter polycarbonate boards, and 1,000, ...