For the ultimate in high resolution permanent signs and tags, laser marked stainless steel is the way to go.
Using the power of the laser to permanently bond a ceramic based material to the metal results in a high contrast black marking that will not wear off.
Because the laser does not actually remove any of the base metal this is a perfect way to add permanent identification marking to precision instruments or tools without compromising the integrity of the metal.
Perfect for equipment identification tags, control plates, or safety tags in industrial applications where there may be a concern that high heat, chemical, or harsh environment exposure may damage or wear other types of material.

National board R stamp identification plate used in high heat and corrosive industrial environments.