... tin, tungsten, tantalum, niobium, gold, coal, monazite, rutile, zircon and other metal, nonmetal minerals with enough specific gravity dispersion of ... 0.02 to 0.3mm. Descriptions of gold spiral concentrator 5LL spiral separator is our company's concentrating experienced ... adaptability to fluctuation of feeding amount, density, size and grade The surface of corundum forms strong friction concentration ...