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| Author | JSA |
|---|---|
| Editor | JSA |
| Document type | Standard |
| Format | File |
| Confirmation date | 2014-10-20 |
| ICS | 25.100.30 : Drills, countersinks, reamers
|
| Number of pages | 4 |
| Cross references | ISO 4207 (1977-02), IDT |
| Year | 1990 |
| Document history | |
| Country | Japan |
| Keyword | JIS 4257;4257;JIS B 4257-1999 |