... their excellent advantages, such as high impact resistance, good head good insulation, sound insulation, light weight, flame resistance , weather resistance, easy ... fire retardant classification of POLYGAL project sun sheet is B1. 4, ImpactresistanceIts outstanding toughnes offers greater protection against breakage during ... (mm)1.2mm,1.5mm,2.0mm,3.0mm,4.0mm,4.5mm 6.0mm,8.0mm,10.0mm,12.0mmLength ...