蜻蜓问洛氏硬度机的允许偏差范围是多少?洛氏硬度计允许误差
2024-03-28 18:13:58 文章来源 :网络 围观 : 次 评论
20-70 HRC: ±1.5HRC 20-45 HRB: ±4 HRB 45-80 HRB: ±3 HRB 80-100HRB: ±2 HRB 20-75 HRA: ±2 HRA 75-100HRA: ±1.5HRA HRN: ±2 HRN HRT: ±3 HRT
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20-70 HRC: ±1.5HRC 20-45 HRB: ±4 HRB 45-80 HRB: ±3 HRB 80-100HRB: ±2 HRB 20-75 HRA: ±2 HRA 75-100HRA: ±1.5HRA HRN: ±2 HRN HRT: ±3 HRT
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