| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 1989-1980 | English | 159 |
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Methods for indication of the 7-bit encoding character set for information processing switching on 12.7mm magnetic tape
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GB/T 1989-1980
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GB/T 1989-1980
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