Entrainment Separators, Centrifugal Pumps and Parts Thereof, Bushings and Bearings for Machinery, Scrubber, Absorption, Fractionating and Stripper, Towers and Columns and Trays, Bubble Caps, and Baffles Therefor

HEAT EXCHANGERS

CENTRIFUGAL PUMPS AND PARTS THEREOF; [ BUSHINGS ] SCRUBBER, ABSORPTION, FRACTIONATING AND STRIPPER TOWERS AND COLUMNS, AND TRAYS, BUBBLE CAPS, AND BAFFLES THEREFOR

CARBON AND GRAPHITE PIPES, TUBES; FITTINGS-NAMELY, L'S, T'S, COUPLINGS, CROSSES, Y'S, BUSHINGS, PLUGS, CAPS, COLLARS, FLANGES, ELBOWS, NIPPLES, [ AND NOZZLES; AND VALVES-NAMELY, GLOBE, ] DIAPHRAGM, COCK, PLUG, AND CHECK VALVES; AND FLOATS AND FLOAT CHAMBERS FOR FLOAT VALVES

CARBON AND GRAPHITE CONSTRUCTION MATERIALS [AND STRUCTURAL ELEMENTS]-NAMELY, [BRICKS, BEAMS], BLOCKS, [PLATES, SLABS, TILE, RODS, GRATINGS,] TUBES, AND TUBE SHEETS