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发明名称
REINFORCING METHOD FOR SHOULDER PART OF PIPE CONSISTING OF IRREGULAR DIAMETER
摘要
申请公布号
JPS5597811(A)
申请公布日期
1980.07.25
申请号
JP19790006278
申请日期
1979.01.22
申请人
NAKAMURA MASANOBU
发明人
NAKAMURA MASANOBU
分类号
B21C37/16;B21C37/06
主分类号
B21C37/16
代理机构
代理人
主权项
地址
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