The DLC coating is usefully used in Precision Mechanics as a high-tech coating which offers excellent wear protection, low frictional coefficients, and very smooth surfaces.
As implied by the name, Diamond-Like Carbon (DLC), the value of such Coatings accrues from their abilities to provide some of the properties of diamond to surfaces of almost any material.
The primary desirable qualities are hardness, wear resistance, and slickness keeping geometric tolerances and required Finishing.
DLC implied features are used in various application fields, tooling components as valves, pistons, camshafts, engine speed which can reduce the friction force and consumption to develop power.
This coating is just the beginning
VGA snc provides many more coating techniques