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NANOFILM VACUUM COATING (SHANGHAI) CO., LTD.

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  • Shanghai, CN
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  • Information Patent Application

    PISTON RINGS AND METHODS OF MANUFACTURE
    • Publication number 20240035570
    • Publication date Feb 1, 2024
    • NANOFILM VACUUM COATING (SHANGHAI) CO., LTD.
    • Chao DU
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

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