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Method of measurement of center beam intensity and beam angle(s)of reflector lamps
STANDARD published on 31.12.2013
Designation standards: GB/T 19658-2013
Publication date standards: 31.12.2013
SKU: NS-354853
Country: Chinese technical standard
Category: Technical standards GB
Latest update: 2026-07-16 (Number of items: 2 287 999)
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