DIN 8309:1981-02 Antimagnetic properties of watches; definition, requirements, testing
标准编号:DIN 8309:1981-02
英文标题:Antimagnetic properties of watches; definition, requirements, testing
德文标题:Antimagnetische Eigenschaften von Kleinuhren; Begriff, Anforderungen, Prüfung
发布日期:1981-02
标准预览图


