hand tools; namely, manually operated abrasive polishing and grinding stones for use in industry

ceramics cemets and composites thereof for use in the metalworking, automotive, leatherworking, electronics, aerospace, nuclear, woodworking, papermaking and mold and die industries; also useful for armor, anti-armor machine parts and for abrasives for polishing, grinding and cutting

components of fuel rods for use in nuclear reactors

abrasive machine tools for use in metalworking, leatherworking, woodworking, papermaking and the mold and die industries