DIN 40614
DIN 40614 Products Based on Built-up or Treated Mica Paper for Electrical Insulation; Laminated Wide and Small Strips; Dimensions
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/1970
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/1970