Title:
【発明の名称】熱間継目無管製造用プラグ
Document Type and Number:
Japanese Patent JP2508862
Kind Code:
B2
Inventors:
TSUBOCHI KENJI
Application Number:
JP33569189A
Publication Date:
June 19, 1996
Filing Date:
December 25, 1989
Export Citation:
Assignee:
SUMITOMO METAL IND
International Classes:
B21B25/00; B21B19/04; (IPC1-7): B21B25/00
Attorney, Agent or Firm:
Terutaka Hogami (1 person outside)