Sung Dong Enterprise is a company specialized in manufacturing of maded urethane products. Thanks for visiting our website, Sung Dong Engineering. We've made all efforts to made machinery which has a variety of world wide Polyurethane Products and to study intechnics and development. We promise, we always do our best to produce with best price, best quality and best service as our 3B Spirts. We look forward to your continuous support and encouragement.Thank you again for your great interest