GB/T 3774-1993 PDF English
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Basic data
| Standard ID | GB/T 3774-1993 (GB/T3774-1993) |
| Description (Translated English) | Standard blocks of Rockwell superficial hardness |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | N71 |
| Word Count Estimation | 8,817 |
| Date of Issue | 1/4/1993 |
| Date of Implementation | 7/1/1993 |
| Older Standard (superseded by this standard) | GB 3774-1983 |
| Adopted Standard | ISO 1355-1989, NEQ |