China National Standards

China Track，127mm GB Standards List

  •  China "Track，127mm" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 6550-1986 Information processing -- 9-Track，127mm wide magnetic tape for information interchange recorded at 63rpmm， phase encoded
    信息处理交换用9磁道12.7毫米宽63行/毫米调相制记录磁带    		 China National Standards
    Track，127mm
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