... the filter element internal surface; the X series and M series are good for the high viscous liquid. ... on LIVIC products and company,please check :www.livicfilter.com Applicable Industries and Liquids Applibable industriesWater treatment, pulp and paper, petro ... , automatic continuouslyonline filtrationMain Specification Sub-seriesA series, X series, M seriesModelsA7, A22, A41, A71, A123, X11, X22, ...