PAPER MANUFACTURING MACHINES AND PARTS THEREFOR; MACHINES FOR TREATMENT OF MIXTURES FOR TEXTILES AND PARTS THEREFOR; MACHINES FOR THE CONDITIONING OF MATTING OR FELTING AND PARTS THEREFOR; MACHINES FOR THE RECOVERY OF PLASTIC AND CELLULOSE PRODUCTS AND PARTS THEREFOR; MACHINES FOR THE MIXING OF ASBESTOS CEMENT AND PARTS THEREFOR; MACHINES FOR THE TREATMENT OF WASTE PRODUCTS AND PARTS THEREFOR