KR890020782U - 나선형 스틸 파이프의 제조 장치 - Google Patents

나선형 스틸 파이프의 제조 장치

Info

Publication number
KR890020782U
KR890020782U KR2019880004734U KR880004734U KR890020782U KR 890020782 U KR890020782 U KR 890020782U KR 2019880004734 U KR2019880004734 U KR 2019880004734U KR 880004734 U KR880004734 U KR 880004734U KR 890020782 U KR890020782 U KR 890020782U
Authority
KR
South Korea
Prior art keywords
steel pipe
manufacturing equipment
pipe manufacturing
spiral steel
spiral
Prior art date
Application number
KR2019880004734U
Other languages
English (en)
Other versions
KR900010325Y1 (ko
Inventor
황환형
Original Assignee
황환형
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 황환형 filed Critical 황환형
Priority to KR2019880004734U priority Critical patent/KR900010325Y1/ko
Publication of KR890020782U publication Critical patent/KR890020782U/ko
Application granted granted Critical
Publication of KR900010325Y1 publication Critical patent/KR900010325Y1/ko

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
KR2019880004734U 1988-04-01 1988-04-01 나선형 스틸 파이프의 제조 장치 KR900010325Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019880004734U KR900010325Y1 (ko) 1988-04-01 1988-04-01 나선형 스틸 파이프의 제조 장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019880004734U KR900010325Y1 (ko) 1988-04-01 1988-04-01 나선형 스틸 파이프의 제조 장치

Publications (2)

Publication Number Publication Date
KR890020782U true KR890020782U (ko) 1989-11-01
KR900010325Y1 KR900010325Y1 (ko) 1990-11-10

Family

ID=19273858

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019880004734U KR900010325Y1 (ko) 1988-04-01 1988-04-01 나선형 스틸 파이프의 제조 장치

Country Status (1)

Country Link
KR (1) KR900010325Y1 (ko)

Also Published As

Publication number Publication date
KR900010325Y1 (ko) 1990-11-10

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Year of fee payment: 8

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