DIN EN 60061-2 : 2019现行
Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 2: Lampholders (IEC 60061-2:1969 + Supplements A:1970 to S:1997 + A18:1998 to A54:2018, modified); German Version EN 60061-2:1993 + A1:1995 to A7:1997 + A1 8
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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