... .mechanical seals good 4.anti-corro Al2O3 ceramic rotary valve for textile machineOur company can supply many kinds of ceramic parts according ... , ZrO2Applications fieldsAll kinds of filling machines, including Pharmaceutical, Beverages, Cosmetics, Chemical, Pesticides, Dairy..The volume from 0.5 ml to 500 ... 01Planeness0.005Roughness 0.05Fit clearance0.005 Al2O3 ceramic rotary valve for textile machine