With the widespread adoption of industrial automation, the localization of hydraulic components has accelerated, marking an important upgrade for equipment manufacturing. In the past, high-end hydraulic components relied heavily on imports, resulting in high costs and supply constraints. In recent years, domestic hydraulic enterprises have achieved major breakthroughs in materials, processes, and precision. The application of automated production lines has driven strong demand for high-precision components. Supported by national innovation policies, domestic substitution will continue to deepen. Domestic components will occupy a higher market share, laying a solid foundation for industrial automation and high-quality manufacturing development in China.