DIN 30910-1
DIN 30910-1 Sintered metal materials; Werkstoff-Leistungsblätter (WLB) sint-material specifications; part 1: explanatory notes for WLB
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 10/01/1990
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 10/01/1990