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发明名称
摘要
申请公布号	JPS546248(B2)	申请公布日期	1979.03.27
申请号	JP19760158465	申请日期	1976.12.27
申请人		发明人
分类号	B21C23/32;C03C3/072;C03C12/00	主分类号	B21C23/32
代理机构		代理人
主权项
地址

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