where can I purchase enclosures that are not cast aluminum

[Belanger]

I'd like to buy some good quality aluminum enclosures to have anodized as I have access to it. however the enclosures I've purchased from tayda have all been cast aluminum and it will not anodize properly because of how impure the actual aluminum itself is. are the Hammond enclosures the same thing, is there anyone who sells the folded aluminum enclosures similar to what wren and cuff use for their civil war muff?

[smallbearelec]

Pre-anodized:

http://smallbear-electronics.mybigcommerce.com/folded-aluminum-anodized/

Bare:

http://smallbear-electronics.mybigcommerce.com/the-bare-box-2/