As far as Britain is concerned, there was a type of thinwall conduit similar to American EMT which can sometimes be found in very old installations.
These days, however, it's generally a choice between PVC or heavy-gauge steel conduit. The latter is available with galvanized or black enamel finishes.
http://www.tlc-direct.co.uk/Main_Index/Conduit_Pvc_Index/index.html http://www.tlc-direct.co.uk/Main_Index/Conduit_Steel_Index/index.html Benders similar to one you pictured are available. Plumbers use the same type of benders for their pipework, with the appropriate formers.
[This message has been edited by pauluk (edited 10-24-2004).]
