All of the solutions have their strengths and limitations. Laser engraving, for example, is considered the most flexible and multi-purpose, still as a surface-intruding technology cannot be used for parts with high functioning demands, where the mark’s edges can cause a safety issue.

On the other hand, several general limitations of the technology can be resolved by choosing the right machinery. For example, dot peen technology is known to best suit metal parts, but there are dot peening machines that handle the surface gently and can also mark wood, plastic and some other materials.

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