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发明名称
METHOD OF PRODUCTING METAL PIPE WITH GROOVE OR PROJECTION ON INNER SURFACE
摘要
申请公布号
JPS5439353(A)
申请公布日期
1979.03.26
申请号
JP19770105656
申请日期
1977.09.02
申请人
HITACHI CABLE
发明人
TATSUMI ARITAKA
分类号
B21C1/22
主分类号
B21C1/22
代理机构
代理人
主权项
地址
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