MANUFACTURING METHOD OF SQUARE OR RECTANGULAR-SHAPED STEEL PIPES AND MANUFACTURING METHOD OF ROUND-SHAPED STEEL PIPES,申请号KR19960007390-传众专利搜索

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发明名称	MANUFACTURING METHOD OF SQUARE OR RECTANGULAR-SHAPED STEEL PIPES AND MANUFACTURING METHOD OF ROUND-SHAPED STEEL PIPES
摘要
申请公布号	KR100213424(B1)	申请公布日期	1999.08.02
申请号	KR19960007390	申请日期	1996.03.19
申请人	NAKAJIMA STEEL PIPE CO., LTD.	发明人	NAKAJIMA, HIROW;NAKAJIMA, NORIO
分类号	B21C37/06;(IPC1-7):B21C37/06	主分类号	B21C37/06
代理机构		代理人
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