Industrial ceramic components, all constructed wholly or partially of ceramics or similar materials, namely, dies for use with machine tools and being parts of machines for the extrusion of rods and tubing of copper, brass or aluminum; engine parts, namely, cam follower faces, valve guides, valve seats and seatings, valves and valving, plunger pumps and plunger pistons, roller bearings and connecting rods, bearings, cylinder liners and piston caps, all being other than for land vehicles; mach...

Industrial ceramic components, all constructed wholly or partially of ceramics or similar materials, namely, dies, being parts of machines for the extrusion of rods and tubing of copper, brass or aluminum; cam follower faces, valve guides, valve seats and seatings, orifice plates, manual valves and valving, plungers and plunger pistons, rollers and connecting rods, bearings, cylinder liners and piston caps, being parts of engines other than for land vehicles; wear and corrosion resistant nozz...

DIES, BEING PARTS OF MACHINES FOR THE EXTRUSION OF RODS AND TUBING OF COPPER, BRASS AND/OR ALUMINUM; CAM FOLLOWER FACES, VALVE GUIDES, VALVE SEATS AND SEATINGS, ORIFICE PLATES, VALVES AND VALVING (BOTH MANUAL AND AUTOMATIC), PLUNGERS AND PLUNGER PISTONS, ROLLERS AND CONNECTING RODS, BEARINGS, CYLINDER LINERS AND PISTON CAPS, BEING PARTS OF ENGINES FOR OTHER THAN LAND VEHICLES; WEAR AND CORROSION RESISTANT NOZZLES, PLUNGERS, BEARINGS, VALVES (MANUAL AND AUTOMATIC) AND SLEEVES, BEING PARTS OF M...