METHOD OF MAKING FORGEEWELDED STEEL PIPE,申请号JP19760009900-传众专利搜索

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发明名称	METHOD OF MAKING FORGEEWELDED STEEL PIPE
摘要
申请公布号	JPS5292860(A)	申请公布日期	1977.08.04
申请号	JP19760009900	申请日期	1976.01.30
申请人	SUMITOMO METAL IND	发明人	HIRAOKA NOBUAKI;HAYASHI CHIHIRO
分类号	B21C37/06;B21C37/08	主分类号	B21C37/06
代理机构		代理人
主权项
地址

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