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发明名称
WELDED STEEL TUBE
摘要
申请公布号
JPH03170641(A)
申请公布日期
1991.07.24
申请号
JP19890260271
申请日期
1989.10.06
申请人
NKK CORP
发明人
SUGA MASATAKA;FUJITA SAKAE;NAGAE MORIYASU;ENDO SHIGERU;TOMA HIDEO;KUSAKA SHUICHI
分类号
F16L9/02;C22C38/00;C22C38/06
主分类号
F16L9/02
代理机构
代理人
主权项
地址
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