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BS EN 1471. Textile floor coverings. Assessment of changes in appearance Ingestion-build-189776 Narrow-band systems include audio frequency
BS EN 1471. Textile floor coverings. Assessment of changes in appearance Ingestion-build-189776 Narrow-band systems include audio frequency
$20.00
Description
Narrow-band systems include audio frequency systems operating within a 4 kHz maximum band
– optical fuse
ISO 516 for camera shutters is applicable to:
Characteristics of safety functions
optically coated
BS EN 1471. Textile floor coverings. Assessment of changes in appearance Ingestion-build-189776 Narrow-band systems include audio frequency
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