NEN ISO 1112:2009现行
Horology - Functional And Non-functional Jewels
出版：Nederlands Normalisatie Instituut
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基本信息
标准编号： NEN ISO 1112:2009
发布时间：2009/3/1 0:00:00
标准类别：Standard
出版单位：Nederlands Normalisatie Instituut
标准页数：4
标准简介
Defines the technical definitions of functional and non-functional horological movement jewels. It also explains the different types of jewels used, and how this is to be marked on a timekeeping instrument or used in advertising.
本标准替代的旧标准
