On 1 Nov 2005 20:45:34 -0800, "az100" wrote:

Very few large masts perhaps but anodising is common for the mast size
in question.
BTW, anodising is an electro chemical process that affects ALL the
surfaces of the part being immersed in the anodising tank. It does not
require a special arm :-)

KS

Actually no. Anodizing reaches exterior surfaces of the anodic object.
To reach interior surfaces needs an interior cathode, not usually
done.

Brian Whatcott Altus OK