This product takes the steel plate as the base. and with the sintering of bronze powder in the dle layer and rolling of the mixture of PTEE at its surface. It has the characteristic of small rubbing coefficient,wear-resisting and corrode resisting. Long using time. The adoption of this product can reduce the cost of machine, reducing noises and negligible stick-slip. It is widely used in printing machine, wearing machine, motorcycles and ect. it is good environment because there are without lead