| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| SJ 1512-1979 | English | 239 |
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Days<=2
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(Speaker Φ40 ~ 115mm permanent ferrite magnets dimension series)
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SJ 1512-1979
| Obsolete |
SJ 1512-1979
|