This product is a high-performance wear-resistant protective material integrally cast from Cast Polyurethane Elastomer (CPU). It perfectly combines the high elasticity of rubber with the high strength of plastic, featuring an extremely wide hardness adjustment range (Shore A10-D80). Serving as the “protective armor” for industrial equipment, polyurethane lining boards are widely used for the internal wall protection of various hoppers, chutes, conveying equipment, and screening machinery. They effectively withstand continuous material scouring, friction, and impact, making them the ideal upgrade choice to replace traditional metal, rubber, and ceramic linings.