| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 2020-1980 | English | 279 |
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Days<=3
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Recording magnetic tape with 9 magnetic tracks, 12.7mm width and 32 lines/mm for information processing exchange
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GB/T 2020-1980
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GB/T 2020-1980
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