[Class : 6] Common Metals And Their Alloys; Common Metals, Unwrought Or Semi Wrought; Goods Of Common Metal Not Included In Other Classes; Metal Coatings And Coverings.[Class : 7] Machines For Vacuum Plating; Machines For Coating And Parts And Fittings.[Class : 19] Ceramics; Ceramic And Non Metallic Coatings And Coverings.