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经营范围
发明名称
HARDENING DEVICE FOR STEEL PIPE
摘要
申请公布号
JPS57185924(A)
申请公布日期
1982.11.16
申请号
JP19810066933
申请日期
1981.05.06
申请人
NIPPON KOKAN KK
发明人
AKITA SHINJI;NAKANISHI HARUYUKI
分类号
C21D1/00;C21D1/18;C21D9/08
主分类号
C21D1/00
代理机构
代理人
主权项
地址
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