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Pob zeb diamond sib tsoo cov log rau kev ua plaub
Hard ceramic muaj suab npe rau nws lub hardness. Lawv nthuav dav hauv cov khoom siv tshuab, tshuaj xyuas cov cuab yeej, kho mob, ib nrab tus neeg ua haujlwm, hnub ci zog, aerospace thiab lwm yam.
Hard ceramic muaj suab npe rau nws lub hardness. Lawv nthuav dav hauv cov khoom siv tshuab, tshuaj xyuas cov cuab yeej, kho mob, ib nrab tus neeg ua haujlwm, hnub ci zog, aerospace thiab lwm yam.