HTC

Grinding and fine grinding machines for the treatment of concrete, wood, natural stones, terrazzo and materials for filling and coating for industrial use; machines for lapping, smoothing and polishing concrete, wood, natural stones, terrazzo and materials for filling and coating for industrial use

Hand tools, namely, manually operated grinding tools and grinding implements for the treatment of concrete, wood, natural stones, terrazzo and materials for filling and coating; hand tools, namely, emery wheels and grinding wheels

Treatment of materials, namely, grinding and stripping finishes from concrete, wood, natural stones and terrazzo; mill-working; providing information for others on material treatment; custom assembly of materials for others; soldering; magnetization; metal treatment; metal casting; metal tempering; metal plating; burnishing by abrasion; and water treatment

Educational services, namely, providing training and arranging and conducting conferences, congresses, seminars, workshops and symposiums in the fields of cleaning, grinding, polishing, milling, metal casting, metalworking, metal tempering and metal plating; organizing cultural events in the fields of cleaning, grinding, polishing, milling, metal casting, metalworking, metal tempering and metal plating; providing information about education in the fields of cleaning, grinding, polishing, milling, metal casting, metalworking, metal tempering and metal plating; vocational guidance services in the fields of cleaning, grinding, polishing, milling, metal casting, metalworking, metal tempering and metal plating