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Title:
ハイドロフォーミング性に優れた溶接鋼管およびその製造方法
Document Type and Number:
Japanese Patent JP4126950
Kind Code:
B2
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Inventors:
Takaaki Toyooka
Masatoshi Aratani
Masanori Nishimori
Yuji Hashimoto
Yoshikazu Kawabata
Mitsuo Kimura
Akira Yodo
Okabe Nochi
Takuya Nagahama
Application Number:
JP2002124913A
Publication Date:
July 30, 2008
Filing Date:
April 25, 2002
Export Citation:
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Assignee:
jfe Steel Corporation
International Classes:
B21B17/14; C22C38/00; B21C37/08; C21D8/10; C22C38/28; C22C38/34; C22C38/54
Domestic Patent References:
JP2001214218A
JP2000119753A
Attorney, Agent or Firm:
Eiichi Kobayashi