1.Al/Zn Metallized film 2. inner diameter :76mm 3.outer diameter:150-300mm 4.with CE,UL,TUL,VDE approved Features Specificationitem unit nominal valuerollmmroll diameter inner diameter 75 outer diameter 150--350(The specific diameters can be customized. )thicknessµm3,4,5,6,7,8,9,10,12width×margin valuemmWidth:30,35,37.5,40,45,50,55,60,65,70,75,80mm margin:1.5,2.0,2.5