JPS579528A - Manufacture of square-shaped metallic tube - Google Patents

Manufacture of square-shaped metallic tube

Info

Publication number
JPS579528A
JPS579528A JP8445380A JP8445380A JPS579528A JP S579528 A JPS579528 A JP S579528A JP 8445380 A JP8445380 A JP 8445380A JP 8445380 A JP8445380 A JP 8445380A JP S579528 A JPS579528 A JP S579528A
Authority
JP
Japan
Prior art keywords
welding
rolls
square
shaped
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8445380A
Other languages
English (en)
Japanese (ja)
Other versions
JPS643570B2 (ko
Inventor
Akio Akahori
Hirotaku Onda
Tsutomu Ogiso
Hirotsugu Haga
Kazuo Aoki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Nippon Steel Metal Products Co Ltd
Original Assignee
Nippon Steel Corp
Nippon Steel Metal Products Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp, Nippon Steel Metal Products Co Ltd filed Critical Nippon Steel Corp
Priority to JP8445380A priority Critical patent/JPS579528A/ja
Publication of JPS579528A publication Critical patent/JPS579528A/ja
Publication of JPS643570B2 publication Critical patent/JPS643570B2/ja
Granted legal-status Critical Current

Links

JP8445380A 1980-06-21 1980-06-21 Manufacture of square-shaped metallic tube Granted JPS579528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8445380A JPS579528A (en) 1980-06-21 1980-06-21 Manufacture of square-shaped metallic tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8445380A JPS579528A (en) 1980-06-21 1980-06-21 Manufacture of square-shaped metallic tube

Publications (2)

Publication Number Publication Date
JPS579528A true JPS579528A (en) 1982-01-19
JPS643570B2 JPS643570B2 (ko) 1989-01-23

Family

ID=13831034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8445380A Granted JPS579528A (en) 1980-06-21 1980-06-21 Manufacture of square-shaped metallic tube

Country Status (1)

Country Link
JP (1) JPS579528A (ko)

Also Published As

Publication number Publication date
JPS643570B2 (ko) 1989-01-23

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