The composition and characteristics of the product, including the feed end of the liner, cylinder liner, the discharge end of the grid plate, enhance the various parts of the strip, rubber filler and fastening bolts supporting parts. The products are resistant to abrasion, impact resistance, tear resistance, light weight, saving power consumption, replace convenient, lower noise characteristics. The products used in the field of product applications? 4.0 × 6.0;? 5.0 × 3.0;? 5.5 × 1.8;? 7.0 × 2.8 autogenous grinding, or SAG mill.