A method of preparing a steel pipe, an apparatus thereof and a steel pipe
A Standard patent application filed on 21 August 1996 credited to Toyooka, Takaaki
;
Yorifuji, Akira
;
Itadani, Motoaki
;
Matsui, Hiroyuki
;
Hashimoto, Yuji
;
Tanaka, Nobuki
;
Ohnishi, Toshio
Details
Application number :
67540
Application type :
Standard
Application status :
CEASED
Under opposition :
No
Proceeding type :
Invention title :
A method of preparing a steel pipe, an apparatus thereof and a steel pipe