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Includes inspection report cardRoundness: within 0.5μm (1 to 30), 0.8μm or less (over 30 to 50 or less)Hardness: 653 to 772HVNominal dimensions (mm): 50Outer diameter (mm): 85Thickness (mm): 20Inner diameter tolerance: ±1.0μm (1至30或更少),±1.5μm(超过30至50或更少),±2.0μm(超过50至100或更少),±5.0μm(超过100至200或更少)表面粗糙度:Ra0.1μm内部大鼠角度:0.05/φ100在0.015mm 内
合金工具钢
700G
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