Title:
PROCESS FOR FORMING THIN METAL PIPE HAVING FLAT SECTION INTO ANNULAR SHAPE
Document Type and Number:
Japanese Patent JPS5355466
Kind Code:
A
Inventors:
TSUNO HIDEFUMI
Application Number:
JP13005076A
Publication Date:
May 19, 1978
Filing Date:
October 30, 1976
Export Citation:
Assignee:
SHIYUUWA KOUGIYOU KK
International Classes:
B21C37/15; B21D51/00; B21D53/18; (IPC1-7): B21C37/15; B21D51/00