Treatment of materials; treatment of materials, namely, fine blanking, dipping, blanking and grinding of machine parts; processing of machine parts; providing information with respect to treatment of materials; treatment of materials, namely, thermal and surface treatments after fine blanking, dipping, punching and grinding; coating and surface finishing of machines and tools; surface finishing of metal articles; treatment of metal surfaces by precision grinding and polishing; hard chromium p...

Surface finishing of metal articles, namely, laser engraving, heat treatment, coating, vibratory finishing, belt grinding, brushing, chemical deburring, ball burnishing, disc grinding, double column surface grinding, electrochemical polishing and flat honing, treatment of metal surfaces by precision grinding and abrasive polishing; hard chromium plating and hard nickel plating of metal surfaces; heat treatment of metal surfaces; soldering; mill working; grinding