7 Machines for use in the processing of cellulose-containing suspensions in the pulp and paper industry, namely stirring machines, mixers, fiber fraction sorters, wash machines, digesters, thickening machines, presses, chip feeders, low-pressure and high pressure feeders, sand and tramp material separators, top separators, impregnation vessels, bleach towers blow tanks, chip bins, intermediate storage tanks, diffusers, oxygen delignification vessels, black liquor evaporators, soda recovery boilers, gas washers for removing contaminants and gases from the cellulose containing suspension, dewatering units for removing liquid from the cellulose containing suspension and replacement parts for the aforesaid goods; parts of machines for use in the processing of cellulose-containing suspensions in the pulp and paper industry namely filters, centrifugal pumps, screens, valves, rakes and replacement parts for the aforesaid goods