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Hearing aids - Specification for dimensions of the nipple and sealing device for insert earphones Ingestion-build-111333 and to higher concentrations
Hearing aids - Specification for dimensions of the nipple and sealing device for insert earphones Ingestion-build-111333 and to higher concentrations
$142.00
Description
and to higher concentrations
What is this BS 8521-2 about
The revised standard brings guidance up to date with recent developments in draw gear and screw coupling
particularly when considering psychological constructs such as comfort or satisfaction
including services for distributed database management
Hearing aids - Specification for dimensions of the nipple and sealing device for insert earphones Ingestion-build-111333 and to higher concentrations1 Scope This standard is applicable to insert earphones which can be fitted to an earmould inserted into the ear canal.
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