BE492052A - - Google Patents

Info

Publication number
BE492052A
BE492052A BE492052DA BE492052A BE 492052 A BE492052 A BE 492052A BE 492052D A BE492052D A BE 492052DA BE 492052 A BE492052 A BE 492052A
Authority
BE
Belgium
Prior art keywords
edges
strip
sealing
joints
folding
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE492052A publication Critical patent/BE492052A/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • B21C37/121Making tubes or metal hoses with helically arranged seams with seams being neither welded nor soldered

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
BE492052D BE492052A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
BE492052A true BE492052A (enrdf_load_html_response)

Family

ID=136389

Family Applications (1)

Application Number Title Priority Date Filing Date
BE492052D BE492052A (enrdf_load_html_response)

Country Status (1)

Country Link
BE (1) BE492052A (enrdf_load_html_response)

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