B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
B21C 25/02 (2006.01) B21C 23/00 (2006.01) B21C 23/08 (2006.01) B30B 11/22 (2006.01)
Patent
CA 2155154
An extrusion die for the extrusion of hollow extrusion products and having at least two extrusion cavities each connected to at least two portholes, especially an extrusion die for aluminium or aluminium alloys, at least one porthole of each extrusion cavity being connected to one porthole of an adjacent extrusion cavity by means of at least one channel.
Brodersen Gunnar
Põrksen Ole
Skov Egon
Fetherstonhaugh & Co.
Norsk Hydro A.s
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