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发明名称
摘要
申请公布号	JPS6211238(B2)	申请公布日期	1987.03.11
申请号	JP19820028144	申请日期	1982.02.25
申请人	HITACHI KINZOKU KK;KAJIMA KENSETSU KK	发明人	NOZAKI HIDEO
分类号	F16L21/06	主分类号	F16L21/06
代理机构		代理人
主权项
地址

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