Method for Manufacturing a Large Exhaust Valve Head by Closed Die Forging,申请号KR20000046642-传众专利搜索

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发明名称	Method for Manufacturing a Large Exhaust Valve Head by Closed Die Forging
摘要
申请公布号	KR100708615(B1)	申请公布日期	2007.04.18
申请号	KR20000046642	申请日期	2000.08.11
申请人		发明人
分类号	B21K1/20	主分类号	B21K1/20
代理机构		代理人
主权项
地址

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