METHOD FOR CORRECTING INNER SURFACE OF ALUMINIUM MATERIAL TO BE EXTRUDED AND FORMED WITH CIRCULAR HOLLOW SECTION AREA,申请号JP19900185591-传众专利搜索

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发明名称	METHOD FOR CORRECTING INNER SURFACE OF ALUMINIUM MATERIAL TO BE EXTRUDED AND FORMED WITH CIRCULAR HOLLOW SECTION AREA
摘要
申请公布号	JPH0471718(A)	申请公布日期	1992.03.06
申请号	JP19900185591	申请日期	1990.07.13
申请人	SHOWA ALUM CORP	发明人	SUGIO EIJI;WADOKORO SABURO
分类号	B21C35/03;B21D3/14	主分类号	B21C35/03
代理机构		代理人
主权项
地址

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