GB/T 11453-1989 Standard PDF file download ; GB/T 11453-1989 Standard english preview version download

GB Standard Code	GB/T 11453-1989
Standard Category	China National Standards
GB Standard English Title	Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions
GB Standard Chinese Title	模拟实际工作条件下的助听器性能测量方法
Chinese Version Price	$15 USD per 50 pages
English Translation Price	About $15 per 1 page; Inquire us for detail price

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