Industrial and commercial material handling equipment, namely, truck dumpers, bucket elevators, conveyors, surge bins, metering bins and day bins and parts therefor, namely, cone bottom, screw and chain reclaimers in the nature of material handling machines for bulk material recovery; industrial size reduction machinery, namely, grinding mills, hammer mills, cage mills, roll mills, crushers, pulverizers, shredders, refiners, breakers, and granulators; power-operated wood chip and biomass processing and screening equipment, namely, chippers, chip slicers, chip classifiers, chip conditioners, chip sizers for resizing chips, air density separators for the removal of contaminants from woody or biomass materials, disc screens, fines screens, bar screens, stone traps, wood and bark hogs in the nature of shredders, wood chip steaming bins, wood chip belt pile builders; power-operated mechanical boiler feeders in the nature of stokers; replacement parts for all of the foregoing goods