What is my Acme/Ajax made out of?

7005 series aluminum alloy. Proprietary, shaped, butted and tapered frame tubes designed for optimum strength, comfort, and durability. Lightweight aluminum tubing with precise tubing configurations for each frame size, results in a smooth and stable ride. Advanced performance styling of seat stays, top tube and down tube, in conjunction with finely tuned geometry deliver an astonishingly nimble ride in the urban environment.