7 MACHINES AND MACHINE PARTS; NAMELY, DOUBLE SUCTION PUMP IMPELLERS, FORGED BARREL PUMP CASINGS FOR PUMPING SEA WATER, CAST CONNECTING PIPES, IMPELLERS FOR NUCLEAR POWER PLANT PRIMARY PUMPS, MULTISTAGE PUMP CASINGS, TWO-PART DISCHARGE CASINGS FOR VERTICAL PUMPS, PRIMARY PUMP MOTOR SHAFTS, IMPELLERS OF PUMPS FOR SEA WATER COOLING CIRCUITS, COMPRESSOR CASING HALVES AND CONNECTING PIPES, BOOSTER IMPELLERS, COMPRESSOR IMPELLERS, COMPRESSOR FRONT DISCS AND LOW PRESSURE DISCS, TURBINE DISCS FOR JET ENGINES AND GAS ENGINES, CENTRIFUGAL IMPELLERS FOR ENGINES AND TURBINES FOR AIRPLANES AND HELICOPTERS, VERTICAL STABILIZER PIVOTS, FORGED PINIONS, B.O.P. (BLOW-OUT-PREVENTING) FORGINGS, STAMPED PARTS, CONES AND HEADS FOR ROCK BITS FOR TERRESTRIAL AND UNDER-WATER OIL WELL DRILLING, AS-FORGED NON-MAGNETIC STABILIZERS, CAST CARDIAN SPIDERS, SWIVEL CASTINGS FOR LOADING CRANES, AIRCRAFT ENGINE PYLON FRONT FITTING, AIRCRAFT ENGINE PYLON RIBS, AIRCRAFT ENGINE PYLON SPARS, AIRCRAFT ENGINE PYLON PARTS, TURBINE DISCS AND COMPRESSOR FRONT DISCS, PUMPS AND COMPRESSORS AND NON-MAGNETIC DRILL COLLARS FOR TERRESTRIAL AND UNDER-WATER OIL WELL DRILLING