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| Coarse Grinding of outside Diameter |
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| Pointed end Coasing Process |
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Clean in hot water by ultrasonic wave |
| Clean in nitric acid by ultrasonic wave |
| Clean in water by ultrasonic wave |
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| OD Grinding Process |
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| Clean in water |
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| Outside Finishing End Face |
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Clean in hot water by ultrasonic wave |
| "SAHFURON"ultrasonic wave |
| Clean in water |
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| Outside Polishing Process |
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Clean in hot water by ultrasonic wave |
| "SAHFURON"ultrasonic wave |
| Clean in water |
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