Nuclear reactors, boilers, machines, apparatus and mechanical devices;�parts of these machines or apparatus deburring, grinding, grinding, grinding, lapping (polishing), polishing or other finishing operations, for metal or cermets, by grinding wheels, abrasives or polishing products, except for ma
1. the ruling tool (pencil) with synthetic diamonds - variable working tool intended for installation on machines and is used to correct abrasive wheels.�pencil consists of a steel hull and working parts (the ruling element).�the ruling element consists of a powder of synthetic diamonds, which kri