KR860002313A - Method for forming inner surface of metal pipe - Google Patents

Method for forming inner surface of metal pipe

Info

Publication number
KR860002313A
KR860002313A KR1019840005315A KR840005815A KR860002313A KR 860002313 A KR860002313 A KR 860002313A KR 1019840005315 A KR1019840005315 A KR 1019840005315A KR 840005815 A KR840005815 A KR 840005815A KR 860002313 A KR860002313 A KR 860002313A
Authority
KR
South Korea
Prior art keywords
metal pipe
forming inner
forming
pipe
metal
Prior art date
Application number
KR1019840005315A
Other languages
Korean (ko)
Other versions
KR890003335B1 (en
Inventor
한재식
Original Assignee
국제모-터스 주식회사
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 국제모-터스 주식회사 filed Critical 국제모-터스 주식회사
Priority to KR1019840005315A priority Critical patent/KR890003335B1/en
Publication of KR860002313A publication Critical patent/KR860002313A/en
Application granted granted Critical
Publication of KR890003335B1 publication Critical patent/KR890003335B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
KR1019840005315A 1984-09-22 1984-09-22 Manufacturing method of a metal pipe's inner KR890003335B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019840005315A KR890003335B1 (en) 1984-09-22 1984-09-22 Manufacturing method of a metal pipe's inner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019840005315A KR890003335B1 (en) 1984-09-22 1984-09-22 Manufacturing method of a metal pipe's inner

Publications (2)

Publication Number Publication Date
KR860002313A true KR860002313A (en) 1986-04-24
KR890003335B1 KR890003335B1 (en) 1989-09-18

Family

ID=19235492

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840005315A KR890003335B1 (en) 1984-09-22 1984-09-22 Manufacturing method of a metal pipe's inner

Country Status (1)

Country Link
KR (1) KR890003335B1 (en)

Also Published As

Publication number Publication date
KR890003335B1 (en) 1989-09-18

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Legal Events

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E902 Notification of reason for refusal
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 19950914

Year of fee payment: 7

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