Title:
A manufacturing method of seamless steel tubes
Document Type and Number:
Japanese Patent JP6197783
Kind Code:
B2
Inventors:
Tatsuro Katsumura
Akihiro Ogawa
Tatsuya Yoshida
Seiji Ozaki
Akihiro Ogawa
Tatsuya Yoshida
Seiji Ozaki
Application Number:
JP2014255874A
Publication Date:
September 20, 2017
Filing Date:
December 18, 2014
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B21B25/04; B21B17/02; B21B19/04; B21B23/00; B21B25/00
Domestic Patent References:
| JP2013533116A | ||||
| JP9316473A |
Foreign References:
| WO2006134957A1 |
Attorney, Agent or Firm:
Kenichiro Ochiai
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