DLC coating, also known as diamond-like carbon coating, boasts high hardness (>HV1500) and a low dry friction coefficient (0.05-0.1). It is an oil-free self-lubricating coating. The thickness of the DLC coating can reach 0.55um, so there's no concern about affecting dimensions. The latest technology ensures excellent lubrication and heat dissipation (dry type), extending the service life of the workpiece by 10-50 times and boosting work efficiency by up to 600%, thereby reducing production costs.