... :20-55% 3) Capacity:0.8-15 t/h 4) 6 models for choose 5LL Gold Ore Spiral Concentrator 5LL spiral ... General Research Institute of Mining and Metallurgy. It is applied for processing iron, tin, tungsten, tantalum, niobium, gold, coal, monazite, ... experienced scientific product, which is the best concentrating equipment, especially for concentrating sand ore in beach, riverside, seashore and stream. ...