A foundational component that integrates multiple valves in hydraulic systems to simplify piping and centralize control. This aluminum alloy or steel block body is used in hydraulic circuits of press machines, injection molding machines, machine tools, etc., for integrated installation of directional control valves, pressure control valves, flow control valves, and other components. Unlike individual valve mounting, it reduces piping connections, minimizes leakage risks, and improves maintainability. Available in cartridge valve compatible, plate type, and modular type configurations, it serves as an essential core component for hydraulic unit miniaturization and reliability enhancement.