The company developed its own high-anion tourmaline powder ore is broken by the multi-channel separation, magnetic resonance high-downs. Magnetic processes and other processed. ; 325 Main goal: to 200 mesh size at 400 head; 6 ; 1250 Head; 800 2,500 h... - Update: 2009-11-05

The tourmaline is a kind of silicic acid rock mineral. As its Chinese craft name ��Bixi��, which means valuable gem, the tourmaline is ranked among the middle level gems. The crystal structure and formation of the tourmaline: trigonal system, compoun... - Update: 2009-11-05

Maifan stone is a kind of precious medicine stone resource, including of many kinds of dissolubility microelements, which are helpful to the health, and has extremely strong sorption. It has two way regulating action with the sour alkali in the aqueo... - Update: 2009-11-05