Machine engraving or acid etching of various materials, such as brass and stainless steel, is used to produce a permanent message that looks good and is vandal resistant. Machine engraving is suitable for simple or larger panels. Acid etching is good for fine line or intricate work where definition of tone is important.
We can advise on the relevant method and employ as required to produce the effect you are looking for.
We can also advise on the use of Braille and the DDA (Disability Discrimination Act) requirements.