Wenzhou Sanhe Measuring Instrument Co., LTD was foundation in 2002, it is a combination of production and trade, industry and trade integration business. Our main product line includes measuring tools, such as Vernier caliper, Micrometer, Dial indicator, Protractor, Hardness testers, Force measuring, Torque Wrench, Concentricity gauge and so on. Our factory has more than 20 years experience in this line, with high technology and advanced machine.