... GB4956). It uses computer technology and can measure the coating thickness of objects without any physical damage.The instrument can ... , nickel) non-magnetic coverage layer (such as: paint, plastic, enamel, copper, aluminum, zinc, chromium, etc.). It not only can ... to measure the thickness of plating layer, paint layer, porcelain enamel layer, aluminum tile, copper tile, Babbitt watts, phosphate layer, ...