Filtering machines for chemical processing; membrane filtering apparatus, namely, * hollow * fiber modules; filters for chemical processing machines; chemical processing machines and apparatus, namely, separating machines for chemical processing

liquid purification units and filters for liquid purification units for treatment, separation and concentration of plastic membranes, fibers and liquids and parts for liquid purification units

semi-processed plastic materials (non-textile) in sheet form for use in the manufacturing of filters; semi-processed filtering and/or separating materials in the form of plastic membranes or plastic hollow fibers for use in the manufacture of filters