The valve Plug and seat ring are custom-made according to customer requirements, with materials ranging from 316L, 316H, 410, 416, 17-4PH H900, and 1075, to R30006, F22, F91, F92, and Inconel 718. This includes various high-temperature alloy components. Additionally, Stellite 6 can be overlaid on the base materials mentioned above to enhance surface erosion resistance. To further withstand harsh working conditions, titanium coatings can be applied to relevant surfaces to improve the red hardness of the metal. With this treatment, the surface hardness can reach approximately HV3300, significantly enhancing erosion resistance.