JPS55126341A - Production of double pipe - Google Patents

Production of double pipe

Info

Publication number
JPS55126341A
JPS55126341A JP3393179A JP3393179A JPS55126341A JP S55126341 A JPS55126341 A JP S55126341A JP 3393179 A JP3393179 A JP 3393179A JP 3393179 A JP3393179 A JP 3393179A JP S55126341 A JPS55126341 A JP S55126341A
Authority
JP
Japan
Prior art keywords
cylindrical
cup
hole
double pipe
cylindrical material
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
JP3393179A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6115764B2 (2
Inventor
Hisashi Nakagawa
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
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP3393179A priority Critical patent/JPS55126341A/ja
Publication of JPS55126341A publication Critical patent/JPS55126341A/ja
Publication of JPS6115764B2 publication Critical patent/JPS6115764B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Metal Extraction Processes (AREA)
JP3393179A 1979-03-22 1979-03-22 Production of double pipe Granted JPS55126341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3393179A JPS55126341A (en) 1979-03-22 1979-03-22 Production of double pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3393179A JPS55126341A (en) 1979-03-22 1979-03-22 Production of double pipe

Publications (2)

Publication Number Publication Date
JPS55126341A true JPS55126341A (en) 1980-09-30
JPS6115764B2 JPS6115764B2 (2) 1986-04-25

Family

ID=12400253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3393179A Granted JPS55126341A (en) 1979-03-22 1979-03-22 Production of double pipe

Country Status (1)

Country Link
JP (1) JPS55126341A (2)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0913213A1 (en) * 1997-10-21 1999-05-06 Pierangelo Girardello Metalworking method and product obtained with the method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62296570A (ja) * 1986-06-17 1987-12-23 Matsushita Electric Ind Co Ltd 発光体支持具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0913213A1 (en) * 1997-10-21 1999-05-06 Pierangelo Girardello Metalworking method and product obtained with the method
US6098436A (en) * 1997-10-21 2000-08-08 Girardello; Pierangelo Metalworking method and product obtained with the method

Also Published As

Publication number Publication date
JPS6115764B2 (2) 1986-04-25

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