A MANUFACTURING METHOD OF FREE-CUTTING LEAD STEEL,申请号GB19700047415-传众专利搜索

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发明名称	A MANUFACTURING METHOD OF FREE-CUTTING LEAD STEEL
摘要
申请公布号	GB1283829(A)	申请公布日期	1972.08.02
申请号	GB19700047415	申请日期	1970.10.06
申请人	NIPPON KOKAN KABUSHIKI KAISHA	发明人
分类号	C22C33/04;B22D11/11;C21C7/00;C22C38/60	主分类号	C22C33/04
代理机构		代理人
主权项
地址

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