Aluminium tubes - Aluminium tubes produced by a seamless or porthole extrusion process
Aluminium tubes - Aluminium tubes produced by a seamless or porthole extrusion process

Aluminium tubes - Aluminium tubes produced by a seamless or porthole extrusion process

Aluminiumwerk Unna AG is specialised in the production of Aluminium tubes. The Aluminium tubes are extruded on site using two possible methods. These are either Seamless extrusion or Porthole extrusion. It is quite simple to distinguish between the two extrusion methods. In seamless extrusion, a mandrel is positioned and fixed inside the extrusion die, creating the inner contour of the tube. In porthole extrusion, the mandrel is fixed and is supported by a number of integral bridges affixed to the outer portion of the extrusion die.
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seamless aluminium tubes - Seamless aluminium tubes from 17 mm to 300 mm
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Extruded aluminum bridge tubes - Extruded aluminum bridge tubes (with welding) from 11 mm to 355 mm
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