Pump Rubber Cover plate liner is the main wear parts for the rubber lined slurry pump. It forms a pump chamber with frame plate liner and throat bush to contact with , As one of main wetted parts, Cover plate liner is very easily worn-out components because it works under longtime impact of abrasive and corrosive in the high speed conditions, So the materials is very crucial to lifetime of complete pump, provides a complete rubber and metal materials selection for most all duties in mill.