The rubber is prepared with multiple special rubbers and natural rubber,so it possesses very good properties of wear resistance, teat resistance and non-disintegration,ect. The adhesion between the rubber and steel frame is very strong. The disassembly is convenient, so it is suitable for various excavators with steel caterpillar bands. The most significant characteristic is that the product can be used though there are no rubber erection holes in the steel caterpillar band.