... , in 1977 developed a new domestic initiative of the apparatus, for separating tungsten, tin, tantalum, niobium, gold, titanium, iron ... research, universities and factories and mines and other units design for identification ( identification certificate No. metallurgical mine 81231 words, and ... 6,0.45Inclination angle(°)9°9°9°9°Max. scroll buckets for each machine4-24-232Feeding granularity (mm)0.3-0. ...