Title:
PIPE EXPANDING METHOD BY INSERTING PLUG WITH DIRECT FLUID PRESSURE AND APPARATUS FOR SAME
Document Type and Number:
Japanese Patent JPS5254663
Kind Code:
A
Inventors:
KAJIMOTO ISAMU
Application Number:
JP13169875A
Publication Date:
May 04, 1977
Filing Date:
October 31, 1975
Export Citation:
Assignee:
SUMITOMO METAL IND
SUMIKIN KIKO KK
SUMIKIN KIKO KK
International Classes:
B21D39/14; B21C37/06; B21D31/04; B21D41/02; (IPC1-7): B21C37/06; B21D31/04; B21D41/02