JPS57157883A - Steel pipe with tapered male screw and its manufacture - Google Patents

Steel pipe with tapered male screw and its manufacture

Info

Publication number
JPS57157883A
JPS57157883A JP4427781A JP4427781A JPS57157883A JP S57157883 A JPS57157883 A JP S57157883A JP 4427781 A JP4427781 A JP 4427781A JP 4427781 A JP4427781 A JP 4427781A JP S57157883 A JPS57157883 A JP S57157883A
Authority
JP
Japan
Prior art keywords
manufacture
steel pipe
male screw
tapered male
tapered
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
JP4427781A
Other languages
Japanese (ja)
Inventor
Takashi Watanabe
Nariyoshi Tanaka
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.)
WATANABE KOGYO KK
Original Assignee
WATANABE KOGYO KK
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 WATANABE KOGYO KK filed Critical WATANABE KOGYO KK
Priority to JP4427781A priority Critical patent/JPS57157883A/en
Publication of JPS57157883A publication Critical patent/JPS57157883A/en
Pending legal-status Critical Current

Links

Landscapes

  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
JP4427781A 1981-03-26 1981-03-26 Steel pipe with tapered male screw and its manufacture Pending JPS57157883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4427781A JPS57157883A (en) 1981-03-26 1981-03-26 Steel pipe with tapered male screw and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4427781A JPS57157883A (en) 1981-03-26 1981-03-26 Steel pipe with tapered male screw and its manufacture

Publications (1)

Publication Number Publication Date
JPS57157883A true JPS57157883A (en) 1982-09-29

Family

ID=12687006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4427781A Pending JPS57157883A (en) 1981-03-26 1981-03-26 Steel pipe with tapered male screw and its manufacture

Country Status (1)

Country Link
JP (1) JPS57157883A (en)

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