difference between extruded aluminum and sheet aluminum

Originally Posted by mthomasdev

Parker,

I would disagree with you. Most of the crutches that I get are extrusions (if cleaned properly). Large umbrellas (yard type), the pole is usually extrusions (have to clean) and the upper parts can also be. Window screens can go either way. Glass windows are almost always extrusions.

I Personally have always known crutches as sheet. Ill inspect them closer if I get some more.
You might be right about some yard umbrellas. My yard would take em as sheet or mixed, I wont spend the time to clean the paint off of them.