... insulation 4.fire-retardant 5.light weight Specifications:1) Thickness: 4mm, 6mm, 8mm, 10mm(twin-wall),12mm,14mm,16mm(triple-wall)2 ... be custom-made. Technical Features:1)Lightweight:4mm-0.95kg/sqm,5mm-1.0kg/sqm,6mm-1.15kg/sqm,8mm-1.45kg/sqm,10mm ... radii for different thickness with standard size(2100mm*6000mm)4mm--700mm,5mm--875mm,6mm--1050mm,8mm--1400mm,10mm—1750mm,12mm--2100mm,14mm--2450mm ...