DIN EN 60061-4 : 2018被替代
Lamp caps and holders tagether with gauges for the control of interchangeability and safetyPart4: Guidelines and general information(IEC 60061-4:1990 + supplements A:1992, 8:1994, C:1994, 0:1995 + A5:1998 to A15:2017,modified);German version EN 60061-4:199
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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