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发明名称
MANUFACTURE OF DUPLEX PIPE REDUCER FITTING
摘要
申请公布号
JPH02247032(A)
申请公布日期
1990.10.02
申请号
JP19890069029
申请日期
1989.03.20
申请人
NIPPON STEEL CORP;BENKAN CORP
发明人
INOUE SEISUKE;TAKADA NOBUHIRO;SUZUKI MASAYOSHI;YABE YASUO
分类号
F16L13/02;B21D41/04;B21D51/16
主分类号
F16L13/02
代理机构
代理人
主权项
地址
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