Established in 1998, Wenzhou Sundoo Instruments Co., Ltd, is designs and manufacturers measuring instruments and hardness testers .Our products included force gauge, torque gauge, spring tester, testing stand and digital microscope. With a registered capital of RMB5,000,000, we maintain a professional staff, an innovative R&D department and a customer oriented marketing team. Accordingly, we produce high quality accurate measuring tools that are compact, easy to operate and low priced. After the successful introduction of our measuring tools in the overseas markets, we currently export nearly 60% of our instruments to North and South America, Europe, Asia, the Middle East, Africa and Oceania. It is our promise to offer you superior customer service throughout the entire trade process. Appropriately, we make it our pledge to deliver you issue free high quality low priced products. Therefore, we gladly welcome you to visit our website or contact us directly for more information.