Huayan leverages MIM precision molding, lightweight material R&D, and hinge module assembly capabilities to provide high-performance joint module one-stop solutions for industrial/service robots. Deeply integrating servo motors, planetary reducers, and lightweight metal structures, it achieves high power density, low backlash (arc-second level angle control), and high torque output while meeting long lifespan, high dynamic response, and lightweight requirements, perfectly adapting to core joint scenarios such as humanoid robots and collaborative robotic arms.