... vacuum degree with maximum of -0.098mpa, low moisture of filter cake, normally 2-4% lower than moisture of the cake ... ; 4. Little pollution, environmentally friendly, safe and reliable; 5. Ceramic filter plate is long service life, easily replaced and doesn‘t ... copper, copper sulfide, nickel, zinc, lead, molybdenum, phosphorus, sulfur, quartz sand, and fluorite. A complete and up-to-date customers list ...