DIN 1082-4
DIN 1082-4 Refractory materials - Part 4: Refractory arch bricks for use in rotary kilns - Dimensions
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 01/01/2007
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 01/01/2007