材 料:JGS1(紫外熔石英)
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外形公差:±0.01mm
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光 洁 度:60-40
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椭 圆 度:<0.005mm

| 编号(NO.) | 直径(Dia) |
| 12G0010R | 1.00 |
| 12G0015R | 1.50 |
| 12G0020R | 2.00 |
| 12G0025R | 2.50 |
| 12G0030R | 3.00 |
| 12G0040R | 4.00 |
| 12G0050R | 5.00 |
| 12G0060R | 6.00 |
| 12G0070R | 7.00 |
| 12G0080R | 8.00 |
| 12G0090R | 9.00 |
| 12G0100R | 10.00 |
| 12G0150R | 15.00 |
| 12G0200R | 20.00 |