... to measure the thickness of plastic film, sheet, diaphragm, paper, foils, silicon wafer, coatings and various materials precisely ... following materials: 1.Films, Sheets, and Diaphragms 2.Paper and Paper Board 3.Foils and Silicon Wafers 4.Metal Sheets ... 2190 Our website is:http://www.labthinkinternational.com/ Labthink International, Inc. is a global enterprise that provides professional quality control ...