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Patents

Current position: Home  >  Scientific Research  >  Patents

带内外加强筋筒形件径向渐进挤压成形工艺方法

Hits:

Patent Applicant:李淑慧

Type of Patent:国家发明专利

State of Patent:已授权

Authorization number:ZL 2018 1 0371949.0

Service Invention or Not:no

Authorization Date:2019-09-24

Authorization Date:2019-09-24

Attachments:

带筋筒体-赵亦希专利.jpg   Download[]Times

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