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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 A51:2016 + A52:2017 + A53:2017, modified); German version EN 60061-2:1993 + A1:
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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