一种易于脱芯的砂芯结构
Release Time:2025-04-30
Hits:
- Title:
- 一种易于脱芯的砂芯结构
- Disigner of the Invention:
- 王富,李成伟,徐文梁,杨强,张航,李涤尘
- Type of Patent:
- Invent
- Application Number:
- 201910168444.9
- Service Invention or Not:
- No
- Application Date:
- 2019-03-06
- Date:
- 2025-04-30
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