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