... diesel pump is widely usde in metallurgy,mining,coal,power station,chemistry, and building materials. Our diesel fire pump are ... . Centrifugal slurry pumps are mainly used to pump high-hardness, strong-corrosion and high-concentration ... ZJLH pump are made of hard metal only. 2. Bearing assembly is adoptable of cylindrical structure, it is ... and frequency conversion drive devices. diesel fire pump