Industrial stirring machines for processing cellulose-containing pulp suspensions; mechanical mixing machines for processing cellulose-containing pulp suspensions; electric pumps for pumping cellulose-containing pulp suspensions or cellulose pulp suspension treatment liquids; industrial fiber fraction sorting machines for removing pulp fiber from cellulose-containing pulp suspensions used in making wood pulp for paper; vibratory screen separators that process cellulose-containing pulp suspensions in making wood pulp for paper; industrial washing machines for washing cellulose-containing pulp suspensions used in making wood pulp for paper; pump control valves for conveying cellulose-containing pulp suspensions or pulp suspension treatment liquids; industrial thickening machines for dewatering cellulose-containing pulp suspensions used in making wood pulp for paper; bleach towers comprised of industrial chemical tanks and piping for bleaching cellulose-containing suspensions with chemicals as part of the paper manufacturing process; power operated industrial raking machines that remove unnecessary solids from cellulose-containing pulp suspensions used in making wood pulp for paper; industrial machine presses for use with cellulose-containing pulp suspensions; industrial chip feeder machines for feeding cellulose fiber chips to a container used in making wood pulp for paper; conveying system equipment, namely blowers for use with cellulose-containing pulp suspensions; low-pressure and high-pressure feeder pumps for pumping cellulose-containing pulp suspensions used in making wood pulp for paper; industrial centrifugal separators for removing unneeded solid materials from cellulose-containing pulp suspensions; impregnation vessels consisting of industrial chemical tanks and piping for impregnating cellulose-containing pulp suspensions with chemicals to make wood pulp for paper; delignification vessels consisting of industrial chemical tanks and piping for removing lignin from cellulose-containing pulp suspensions in the process of making wood pulp for paper; and parts therefor for the above stated goods

Chip meters for measuring and regulating the flow of cellulose-containing fiber chips in the process of making wood pulp for paper

Apparatus for heating cellulose-containing suspensions in making wood pulp for paper; namely, industrial diffusers for diffusing cellulose-containing pulp suspensions and black liquor evaporators for evaporating black liquor pulp process residue; chip bins, namely, steam generators for adding steam to heat cellulose fiber chips in making wood pulp for paper; gas washers, namely, apparatus for the cleaning and purification of gases, in which gas from a condenser is brought in contact with a falling stream of water, to precipitate the tar remaining in it; heat exchangers for use with cellulose-containing suspensions or cellulose suspension treatment liquids; electric heaters for commercial use in heating the following-- cellulose-containing pulp suspensions, treatment liquids for cellulose-containing pulp suspensions and liquids extracted from cellulose-containing pulp suspensions; industrial dryers for heating and thickening cellulose containing pulp suspensions by removing water therefrom; industrial soda recovery boiler for use with recovering cooking chemicals used in the paper manufacturing process; and parts therefor for the above stated goods

Construction and repair of industrial facilities for producing cellulose pulp and industrial facilities for emission control and energy recycling and chemical recovery in cellulose pulp productions

Treatment of cellulose pulp suspensions by impregnation, delignification, cooking and bleaching with heat treatment and addition of liquor-containing cooking liquids and/or chemicals in order to produce cellulose pulp