Donggang Derun specializes in the supply of high-quality casting parts such as mining equipment wear parts, pump parts, valve parts, auto parts, rail parts, engineering machinery parts and coupling parts etc.. DR is a company which is composed by experienced experts in the foundry industry. We can give proper solutions and advice in all the subjects to castings and forgings, particularly in the wear resistance world. Our target is to supply qualified parts and good service at competitive prices.