... can measure the thickness of non-magnetic coatings ( e.g. zinc, aluminum, Cr. Copper, rubber, paint and etc.) on magnetic ... , paint,anodizing) coating on non-ferrous metals (such as copper, Al, Zinc and etc) and also on austenitic VA steel materials.Measuring ... , paint,anodizing) coating on non-ferrous metals (such as copper, Al, Zinc and etc) and also on austenitic VA steel materials.Measuring ...