1. Cast stainless steel valve disc uses 304, 316 or 316L stainless steel, which has the characteristics of corrosion resistance, rust resistance and high temperature resistance. 2. Cast stainless steel valve disc uses multiple CNC machining centers and CNC lathes to ensure 0.01-0.02mm high tolerance accuracy, guarantee sealing performance and service life. 3. Cast stainless steel valve disc has a simple structure, light weight, small footprint, and is suitable for a variety of industrial environments.