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标准硬度块 | 示值*大误差δ/% | 示值重复性误差Hcf/% |
≤125 | ±3 | ≤3.5 |
125<HBW≤225 | ±2.5 | ≤3.0 |
>225 | ±2 | ≤2.5 |