... or 6000mm ,no limited .4)Color: Clear, Bronze, Blue, Lake-blue, Green, Grass-green, White, Red, Grey, Yellow, Purple, ... Fire Retardancy : According to gb 8624-1997 the fire retardant classsification of Tonon sheet is B1.4) Impactresistance :It's ... insulating wall of expressway and city overhead road8) in indoor partitioning or screen decoration clear and colored polycarbonate hollow sheet for roofing