... 20-30mic, One side Primered for retogravure or Flexo Printing both, One side HSL against PVC Pharmaceutical Blister/Lid FoilSPECIFICATION SHEET Alu ... less than 2mm, not have any obvious variation or loose for inner core, no serious broken and concave outside presented, the ... .25ppmSupplierJiangsu Zhongjin Matai Medicinal Packaging Co.,Ltd Unprinted PTP Foil for Pharmaceutical Packaging