HOT EXTRUSION METHOD FOR UNSYMMETRICAL PIPE,申请号JP19770032965-传众专利搜索

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发明名称	HOT EXTRUSION METHOD FOR UNSYMMETRICAL PIPE
摘要
申请公布号	JPS53117669(A)	申请公布日期	1978.10.14
申请号	JP19770032965	申请日期	1977.03.24
申请人	SUMITOMO METAL IND	发明人	TAKIGUCHI HIROSHI;DOUHARA TADASHI
分类号	B21C1/00;B21C23/08;B21C23/10	主分类号	B21C1/00
代理机构		代理人
主权项
地址

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