GB/T 9412-1988 Standard PDF file download ; GB/T 9412-1988 Standard english preview version download

GB Standard Code	GB/T 9412-1988
Standard Category	China National Standards
GB Standard English Title	Modems for date transmission at 48 kilobits per second using 60～108 kHz group band circuits
GB Standard Chinese Title	用于60～108 kHz基群电路的48 kbit/s数据传输的调制解调器
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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