The key components of large-scale industrial equipment often experience rapid surface failure and scrapping due to wear, corrosion, high temperature and other working conditions; Through additive manufacturing and remanufacturing, our company selects suitable materials for surfacing, cladding and thermal spraying on the surface of key components of large equipment to improve their wear resistance, corrosion resistance and high temperature resistance, thus extending the service life of key components, thereby improving the production efficiency of large equipment, achieving the purpose of energy saving and consumption reduction and reducing industrial costs.