Best way to clean green oxidation from poles?

I have alot of green oxidation on a few poles...Whats the best technique to clean this? I thought naval jelly first ...then I figured I'd ask. Thanks in advance.

try spraying with some woodys wax,blue spray bottle, let soak over night then rub off, stuff works pretty well on most metals and is safe on everything.

Will try. Thanks Capt.