KR900020099U - 3.5인치 플로피 디스크의 메탈허브 성형용 금형 - Google Patents

3.5인치 플로피 디스크의 메탈허브 성형용 금형

Info

Publication number
KR900020099U
KR900020099U KR2019890006802U KR890006802U KR900020099U KR 900020099 U KR900020099 U KR 900020099U KR 2019890006802 U KR2019890006802 U KR 2019890006802U KR 890006802 U KR890006802 U KR 890006802U KR 900020099 U KR900020099 U KR 900020099U
Authority
KR
South Korea
Prior art keywords
mold
floppy disk
metal hub
inch floppy
hub molding
Prior art date
Application number
KR2019890006802U
Other languages
English (en)
Other versions
KR910007134Y1 (ko
Inventor
유재환
Original Assignee
주식회사 에스 케이 씨
주식회사 호성정밀
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 주식회사 에스 케이 씨, 주식회사 호성정밀 filed Critical 주식회사 에스 케이 씨
Priority to KR2019890006802U priority Critical patent/KR910007134Y1/ko
Publication of KR900020099U publication Critical patent/KR900020099U/ko
Application granted granted Critical
Publication of KR910007134Y1 publication Critical patent/KR910007134Y1/ko

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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders
    • 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
    • B21D53/00—Making other particular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
KR2019890006802U 1989-05-24 1989-05-24 3.5인치 플로피 디스크의 메탈허브 성형용 금형 KR910007134Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890006802U KR910007134Y1 (ko) 1989-05-24 1989-05-24 3.5인치 플로피 디스크의 메탈허브 성형용 금형

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890006802U KR910007134Y1 (ko) 1989-05-24 1989-05-24 3.5인치 플로피 디스크의 메탈허브 성형용 금형

Publications (2)

Publication Number Publication Date
KR900020099U true KR900020099U (ko) 1990-12-12
KR910007134Y1 KR910007134Y1 (ko) 1991-09-24

Family

ID=19286360

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890006802U KR910007134Y1 (ko) 1989-05-24 1989-05-24 3.5인치 플로피 디스크의 메탈허브 성형용 금형

Country Status (1)

Country Link
KR (1) KR910007134Y1 (ko)

Also Published As

Publication number Publication date
KR910007134Y1 (ko) 1991-09-24

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Payment date: 19970822

Year of fee payment: 9

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