... dust pollution 4. 30-year-experience. Professional design gold ore mining production line 1.Spiral chute Application:Spiral chute is applicable to material ... .02 mm, such as of Iron ore, Ilmenite, Chromite, Pyrite, Zircon and Rutile, Monazite, Tungsten ore, Tin, Tantalum ore, Niobium mine and other non ...