The changzhou diamond tool plant, with its registered address in lake tong town, wujin district, is the administrative approval department of the wujin district, changzhou city. The legal entity is represented by choi quni, and operates in the areas of diamond tools, knives, hardware tools, utensils, mechanical parts manufacture, processing and sale of metal materials, construction materials and hardware. (projects subject to legal approval may not operate without the approval of the relevant department)