| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 1779.2-1989 | English | 199 |
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Days<=2
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Minimum performance requirements of 6. 30mm broadcast audio tapes
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GB/T 1779.2-1989
| Obsolete |
GB/T 1779.2-1989
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