Title:
継目無鋼管圧延用鋳造ロール材および継目無鋼管圧延用ロール
Document Type and Number:
Japanese Patent JP4059099
Kind Code:
B2
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| JPS60124405 | PIERCING METHOD OF HOLLOW BLANK PIPE |
Inventors:
Kenji Ichino
Takaaki Toyooka
Satoshi Ozeki
Taro Kanayama
Takaaki Toyooka
Satoshi Ozeki
Taro Kanayama
Application Number:
JP2003039436A
Publication Date:
March 12, 2008
Filing Date:
February 18, 2003
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B21B19/04; C22C38/00; B21B27/00; B21B27/02; C22C38/38
Domestic Patent References:
| JP10081937A |
Attorney, Agent or Firm:
Eiichi Kobayashi