| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 4637-1984 | English | RFQ |
ASK
|
Days<=3
|
Recoding and reproducing head gaps for monophonic and three magnetic sound records on 35mm montion-picture film-Positions and with dimensions
|
GB/T 4637-1984
| Obsolete |
GB/T 4637-1984
|