7
Grinding and fine grinding machines for industrial use and polishing machines for the treatment of concrete, wood, natural stones, terrazzo and materials for filling and coating
8
Manually operated grinding tools and grinding implements; manually operated emery and grinding wheels
37
[ Repair, maintenance and rental of grinding and fine grinding machines for industrial use and polishing machines for the treatment of concrete, wood, natural stones, terrazzo and materials for filling and coating ]
40
Grinding operation services, fine grinding services; polishing of concrete, wood, natural stones, terrazzo and materials for filling and coating; cutting of concrete, wood, natural stones, terrazzo and materials for filling and coating; providing information on treatment of materials; soldering processing; metal treatment; metal casting and metal plating
41
Education services, namely, providing training, conferences, seminars and symposiums in the fields of cleaning, grinding, polishing, cutting, metal treatment, metal casting and metal plating
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