一种青铜基CBN砂轮及其制备方法
Release Time:2025-03-07
Hits:
- Title:
- 一种青铜基CBN砂轮及其制备方法
- Type of Patent:
- 国家发明专利
- State of Patent:
- Authorized patents
- Authorization Number:
- ZL201810749041.9
- Service Invention or Not:
- No
- Authorization Date:
- 2020-11-06
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