Mudanjiang or Mutankiang (both: mō-dän-jyäng) [key], city (1994 est. pop. 602,700), SE Heilongjiang prov., China. It is a railroad junction and a lumbering center in a rich timber region. Rubber products, especially tires, are a major manufacture, in addition to aluminum and various construction materials. The city was the capital of the former Songjiang prov.