The gate assembly and accessory models are complete and interchangeable with large domestic and foreign companies. The ordinary gate plate is made of 4130 low-alloy refined steel quenched and tempered, which has a long history and stable mechanical properties. The high-pressure, variable diameter orifice gate is made of F22 low-alloy refined steel through quenching and tempering. This material has strong hardenability, high performance, and good corrosion resistance.