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| Standard Insuued on: 1990-09 |
JJG 2068-1990 Measuring Instruments for Metallic Superficial Rockwell Hardness
金属表面洛氏硬度计量器具检定系统
| Category No.: | JJ | Valid Status: | superseded |
| Issued Organization: | State Technical Supervision Bureau | Issued Date: | 1990-09-07 |
| Implemented Date: | 1990-9-1 | Abolished Date: | |
| Superseded Standard.: | JJG 2067-2016 Measuring Instruments for Metallic Rockwell Hardness |
Superseded Date: | 2016-9-3 |
CECS : 1890
CECS : 1690
CECS : 2390
CECS : 1590
CECS : 2590
CECS : 2090
CECS : 1790
CECS 17-1990
LS/T 3225-1990
CECS : 2190
CECS 16-1990
GB/T 12471-1990
GB/T 12472-1990
GB/T 12470-1990
GB/T 12473-1990
GB/T 12747-1991
GB 12470-1990
GB/T 12474-1990
GB 12475-1990
GB 12485-1990
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