CHANG SIK KIM

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Hongseong-gun, KR

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Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MAKING BEARING USING ULTRASONIC NANO CRYSTAL SURFACE MODI...
- Publication number 20100024218
- Publication date Feb 4, 2010
- DESIGNMECHA CO., LTD.
- YOUNG SIK PYUN
- B24 - GRINDING POLISHING