... barrier for metal building. Feacture of foil kraft paper:Heat Insulation With high tensile strength and bursting strengthVapor ... )Aluminium Foil:7-micron2)PE3)Kraft:50gsm;55gsm4) Roll width: 1.0, 1.2, 1.25, 1 ... .30m5) Roll length: 60, 120, 300, 500, 1800, 3000m6) ... 25mm8) Bursting strength: 25NMore specification of foil,kraft,roll length,roll width are acceptable Foil Kraft Paper