Gold yield from placer gold, from MaiJin. MaiJin production in 75 to 85% since the 70 s, placer gold accounts for 15-25%. Sand gold ore dressing methods Native gold deposit show the earth’s surface, because of the mechanical and chemical weathering, containing gold vein gold either parent rock is broken gradually become cuttings and gold…

Feeder feeding machine, is the usual place is different, so the name is different, but the essence is the same. Users choose feeder at ordinary times, be sure to consider these factors: quantificationally and the adjusting range, precision, material properties, installation of quantificationally, appearance size, safety and reliability, environmental conditions and self-respect, and so on.…