Nanjing NanDa Instrument Co,Ltd., established in 1952,is a manufacturer of ball mill,vacuum glove box,experimental electric furnace and pressure vessel.We are the first company in China to produce ball mill. Our product are designed by the research team of NanJing University.In the past,we have mainly exported to the North American market.Our product can be used in material laboratories which provide researchers to develop new material under high pressure or vaccuum environment.