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发明名称
METHOD FOR FORMING LOST FOAM PATTERN FOR HOLLOW CAM SHAFT
摘要
申请公布号
JPH0489154(A)
申请公布日期
1992.03.23
申请号
JP19900204148
申请日期
1990.07.31
申请人
NIPPON PISTON RING CO LTD
发明人
OGAWA YOSHIO
分类号
B22C7/02
主分类号
B22C7/02
代理机构
代理人
主权项
地址
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