JPS5357169A - Plug exchange and its device of seamless steel pipe piercing equipment - Google Patents

Plug exchange and its device of seamless steel pipe piercing equipment

Info

Publication number
JPS5357169A
JPS5357169A JP13178576A JP13178576A JPS5357169A JP S5357169 A JPS5357169 A JP S5357169A JP 13178576 A JP13178576 A JP 13178576A JP 13178576 A JP13178576 A JP 13178576A JP S5357169 A JPS5357169 A JP S5357169A
Authority
JP
Japan
Prior art keywords
steel pipe
seamless steel
pipe piercing
piercing equipment
plug exchange
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
JP13178576A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5433788B2 (Direct
Inventor
Masakatsu Oomori
Toshiyuki Kadota
Tetsuya Higuchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13178576A priority Critical patent/JPS5357169A/ja
Publication of JPS5357169A publication Critical patent/JPS5357169A/ja
Publication of JPS5433788B2 publication Critical patent/JPS5433788B2/ja
Granted legal-status Critical Current

Links

JP13178576A 1976-11-04 1976-11-04 Plug exchange and its device of seamless steel pipe piercing equipment Granted JPS5357169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13178576A JPS5357169A (en) 1976-11-04 1976-11-04 Plug exchange and its device of seamless steel pipe piercing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13178576A JPS5357169A (en) 1976-11-04 1976-11-04 Plug exchange and its device of seamless steel pipe piercing equipment

Publications (2)

Publication Number Publication Date
JPS5357169A true JPS5357169A (en) 1978-05-24
JPS5433788B2 JPS5433788B2 (Direct) 1979-10-23

Family

ID=15066079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13178576A Granted JPS5357169A (en) 1976-11-04 1976-11-04 Plug exchange and its device of seamless steel pipe piercing equipment

Country Status (1)

Country Link
JP (1) JPS5357169A (Direct)

Also Published As

Publication number Publication date
JPS5433788B2 (Direct) 1979-10-23

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