Established in 1998, Wenzhou Sundoo Instruments Co., Ltd. is a corporation, which specialize R&D, manufacture, and selling measuring equipments in China. Today the sales net covered all over China including 2400 distributors. SUNDOO brand and the products of SUNDOO are confided by all users and clients. 

SUNDOO INSTRUMENTS is a manufacturer of force gauge and various matched test stands, spring tester, torque meter, hardness tester, thickness gauge, torque screwdriver and wrench, microscope. They are mainly used to test the tension and compression, pull and push force, hardness, thickness and other parameter.

With a wide range of use, our products are applied in fields such as Electronic& Magnetic Industry, Machinery Industry, Textile Industry, Nice Manufacture, Automobile Industry, Lighter Industry, Scientific Research and so on.