... aluminum, chromium, copper, enamel, rubber, paint, etc.) and nonmagnetic metal matrix (such as copper, aluminum, zinc, tin, etc.) on ... quality of products, and is widely used in manufacturing, metal processing industry, chemical industry, commodity inspection and testing field. ... (); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); digital coating thickness gauge for metal and plastic paint