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| Standard Insuued on: 2002-11 |
GB/T 230.3-2002 Metallic Rockwell hardness tes - Part 3: Calibration of hardness reference blocks (scales A, B, C, D, E, F, G, H, K, N, T)
金属洛氏硬度试验 第3部分: 标准硬度块(A、B、C、D、E、F、G、H、K、N、T标尺）的标定
| Category No.: | GB | Valid Status: | superseded |
| Issued Organization: | AQSIQ | Issued Date: | 2002-11-25 |
| Implemented Date: | 2003-5-1 | Abolished Date: | |
| Superseded Standard.: | GB/T 230.3-2012 Metallic materials - Rockwell hardness test - Part 3：Calibration of reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) |
Superseded Date: | 2013-6-1 |
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