Materials Commonly Laser Marked / Engraved

Aluminum Polycarbonate
Steel ABS
Stainless Steel Delrin
Titanium PEEK
Carbide Plastics with laser additives
Brass And more!
And more!  

** In addition to lasering the above materials in their bare state, coating the bare material before lasering can lead to excellent results.  Black oxide, anodization, chrome, and paint are just a few finishes that lend themselves very well to laser marking and engraving