| 申请日期 | 2025-07-07 | 申请号 | KR2020050032934 |
| 公开（公告）号 | KR200408640Y1 | 公开（公告）日 | 2006-02-06 |
| 公开国别 | KR | 申请人省市代码 | 全国 |
| 申请人 | Ball Corporation Korea | ||
| 简介 | A silicon nitride ceramic material the device a signal with the same wavelength component herein magnesium oxide (MgO) or yttrium (Y 2 O 3) of rare earth metal oxide sintered firing a superior abrasion resistance of silicon nitride kick, for gim neutral, non-oxidizing (corrosion resistance) heat resistance and without using lubricant using is provided to ball. | ||
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