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摘要
申请公布号
JPH0323245(B2)
申请公布日期
1991.03.28
申请号
JP19880153476
申请日期
1988.06.23
申请人
SUMITOMO JUKIKAI KOGYO KK;SUMITOMO KINZOKU KOGYO KK
发明人
TAKASE KOHEI;TAN JUNICHIRO;TSURUTA KAZUO;ASAI HITOSHI
分类号
B21C47/18;B21C47/34
主分类号
B21C47/18
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