Established in 1998, Wenzhou Sundoo Instrument Co., Ltd. is a cooperation, which specialize R&D, manufacture, sales measuring equipments. Today the sales net covered all over China and include 800 distributors. SUNDOO and the products of SUNDOO are confided by all the users and clients. SUNDOO INSTRUMENTS is one manufacturer of few companies, which can produce can produce such good quality, high accuracy and resolution, multifunctional measuring equipments in China.