Title:
【発明の名称】継目無鋼管の圧延方法
Document Type and Number:
Japanese Patent JP2737310
Kind Code:
B2
Inventors:
SAKURA HIROMOCHI
OKAMOTO YOSHIHIDE
OKAMOTO YOSHIHIDE
Application Number:
JP28179289A
Publication Date:
April 08, 1998
Filing Date:
October 31, 1989
Export Citation:
Assignee:
NIPPON KOKAN KK
International Classes:
B21B17/14; B21B19/10; B21B23/00; (IPC1-7): B21B23/00; B21B17/14
Attorney, Agent or Firm:
Muneharu Sasaki (1 person outside)