Thickness gage is particularly suitable for precise film thickness gauge, sheet materials, diaphragm, paper, thin plate, silicon wafer. Etc. thickness gage conforms to the standard ISO4593, ISO534, ISO3034, astm D645, astm D374, astm micrometric, tappi T411, DIN53105, DIN53353, jis K6250, jis K6328, jis K6783, jis Z1702, BS3983, BS4817, gb/t 6672, gb/t 451.3, gb/t 6547