Manganese sand filter, emery, the floor color emery. Polymerization aluminum chloride, polyacrylamide, quartz sand, fire foam, polyether fire foam agent, powder fire foaming agent, organic silicon anti foaming agent, plastic dissipation foaming agent, activated carbon, powdered activated carbon, spherical activated carbon, coconut shell activated carbon, columnar activated carbon, nut shell activated carbon, anthracite filter media,