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发明名称
摘要
申请公布号
JPH0520674(B2)
申请公布日期
1993.03.22
申请号
JP19850007466
申请日期
1985.01.21
申请人
NIPPON STEEL CORP
发明人
HIRAOKA TERUYOSHI;FUJII HIROMU;TAKEDA YASUO
分类号
B22D43/00;B22D37/00;C04B5/00;F27D3/15
主分类号
B22D43/00
代理机构
代理人
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