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发明名称
FORGING METHOD FOR CRANK SHAFT
摘要
申请公布号
JPH03243241(A)
申请公布日期
1991.10.30
申请号
JP19900039349
申请日期
1990.02.19
申请人
SUMITOMO METAL IND LTD
发明人
KUBO AKIRA
分类号
B21J5/02;B21K1/08
主分类号
B21J5/02
代理机构
代理人
主权项
地址
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