JPS6376319U - - Google Patents

Info

Publication number
JPS6376319U
JPS6376319U JP16891786U JP16891786U JPS6376319U JP S6376319 U JPS6376319 U JP S6376319U JP 16891786 U JP16891786 U JP 16891786U JP 16891786 U JP16891786 U JP 16891786U JP S6376319 U JPS6376319 U JP S6376319U
Authority
JP
Japan
Prior art keywords
round tube
metal round
spiral groove
tube
rollers
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.)
Pending
Application number
JP16891786U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP16891786U priority Critical patent/JPS6376319U/ja
Publication of JPS6376319U publication Critical patent/JPS6376319U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)
JP16891786U 1986-10-31 1986-10-31 Pending JPS6376319U (da)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16891786U JPS6376319U (da) 1986-10-31 1986-10-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16891786U JPS6376319U (da) 1986-10-31 1986-10-31

Publications (1)

Publication Number Publication Date
JPS6376319U true JPS6376319U (da) 1988-05-20

Family

ID=31102245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16891786U Pending JPS6376319U (da) 1986-10-31 1986-10-31

Country Status (1)

Country Link
JP (1) JPS6376319U (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100720729B1 (ko) 2005-04-23 2007-05-23 이기형 금속 원형 파이프에 일중 또는 다중으로 외부는 압입, 내부는 돌출 나선 부위가 형성되도록 성형하는 나선 파이프의 제조 장치 및 그 제조 장치로 제조된 나선 파이프

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100720729B1 (ko) 2005-04-23 2007-05-23 이기형 금속 원형 파이프에 일중 또는 다중으로 외부는 압입, 내부는 돌출 나선 부위가 형성되도록 성형하는 나선 파이프의 제조 장치 및 그 제조 장치로 제조된 나선 파이프

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