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发明名称
ROLLING METHOD
摘要
申请公布号
JPH02142612(A)
申请公布日期
1990.05.31
申请号
JP19880294556
申请日期
1988.11.24
申请人
HITACHI LTD
发明人
YASUDA KENICHI;HIRAMA YUKIO;SATO KOJI
分类号
B21B1/32;B21B47/00
主分类号
B21B1/32
代理机构
代理人
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