CrN (Chromium Nitride) coating is an advanced surface treatment technology with excellent wear and corrosion resistance, making it highly effective in extreme conditions such as marine environments. CrN coating protects metal components from salt and moisture, preventing corrosion, and its high hardness and heat resistance make it durable against mechanical friction. Additionally, its low friction coefficient reduces friction between parts, enhancing the operational efficiency of equipment. These characteristics ensure long-term durability in marine environments, making this coating an optimal solution for maintaining the performance and reliability of components, especially in naval operational equipment.