Aluminum extraction

http://www.extrusionworld.co.za/

See http://www.makerslide.com/ for links to global suppliers of extrusion used in cnc builds.

openbeam.com
http://www.openbeamusa.com/ from  http://reprap.org/wiki/Extruded_Aluminum

See http://sasecurity.wikia.com/wiki/Cnc_buildlog for sa supplier