Document Type and Number:
Japanese Patent JPS6357485
Kind Code:
B2
Inventors:
NUNOKAWA TAKESHI
YAMAMOTO KAZUYA
YAMAMOTO KAZUYA
Application Number:
JP18977181A
Publication Date:
November 11, 1988
Filing Date:
November 25, 1981
Export Citation:
Assignee:
SUMITOMO METAL IND
International Classes:
B21C37/06; B21C37/08; C21D1/70; C21D9/52; C21D9/56