GB/T 12449-1990 Standard PDF file download ; GB/T 12449-1990 Standard english preview version download

GB Standard Code	GB/T 12449-1990
Standard Category	China National Standards
GB Standard English Title	Interface for using dedicated interconnections between sound and television broadcasting transmitting equipment and supervisory equipment
GB Standard Chinese Title	以专用连接线方式互连的声音和电视广播发射设备与监控设备之间的接口
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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