DIN 8293-1:1975-04 Balance staffs for watches and clocks; main types, designations

标准编号：DIN 8293-1:1975-04

英文标题：Balance staffs for watches and clocks; main types, designations

德文标题：Unruhwellen für Uhren; Hauptformen, Benennungen

发布日期：1975-04

标准预览图