... barrier against a wide range of gases.10).Widely use for packaging, printing, laminating,metallizing, decroation, electrical insulation. SpecThicknessLengthWidthCore size10~50 ... understood as guaranteed values. They are only thebasic test values for your reference. If required can be adjusted according to yourrequirements ... .2m,6.7m and 8.7m width jumbo roll. . pet base film for packing