Document Type and Number:
Japanese Patent JPS6255447
Kind Code:
B2
Inventors:
SUZUKI SHINICHI
MIKI TAKESHI
TSUCHIDA YUTAKA
MIKI TAKESHI
TSUCHIDA YUTAKA
Application Number:
JP6174582A
Publication Date:
November 19, 1987
Filing Date:
April 15, 1982
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B21C37/04; B21C37/06; B22D7/04; B22D19/00
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