Classification Information
Precious metals and their alloys; ingots of precious metals; gold ingots; gold alloy ingots; unwrought or beaten gold; unworked or semi-worked gold
JewelryInstallation, maintenance and repair of apparatus for processing metals
Building Construction and RepairProcessing of chemical materials for obtaining metals; treatment (transformation) of waste; refining of metals; metal casting; metals plating and laminating; metal treatment services; tempering of metals
Treatment of Materials