| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 4644-1984 | English | 199 |
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Days<=2
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Magnetic stripes and recording and reproducing head gaps for magnetic sound records on 16mm motion-picture film perforated along one edge--Positions and width dimensions
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GB/T 4644-1984
| Obsolete |
GB/T 4644-1984
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