This comprehensive article explores the top three metal 3D printing technologies—Selective Laser Melting, Electron Beam Melting, and Binder Jetting—detailing their processes, advantages, applications, and leading equipment suppliers. It highlights how metal 3D printing is revolutionizing industries like aerospace, automotive, and medical by enabling complex, customized parts with improved performance and cost-efficiency. The article concludes with an FAQ to assist manufacturers and brands in understanding and leveraging this innovative technology for advanced OEM solutions.