GOLD gold species can not exist as free state synthetic natural product in nature. After refining their different content and different sources of raw gold and cooked into gold. Also known as the natural golden gold, gold shortage, the original gold, semi-finished gold is cooked, from mines or river alluvial mining without melting refined gold. Divided into two alluvial gold mine golden gold. Gold is the main mineral deposit sand on the ancient and modern history of the world gold production, but after thousands of years of mining, ore-rich and more have been exhausted, and now mainly gold mine slag-based machines offer, gold is produced in the bottom of the riverbed Bay song or low-lying areas, mixed with sand and stone, after washing out of gold. Shakin originated in mine slag machine, is due to the gold ore out of the ground, the wind and rain after a long, rock weathering and chipping slag machine brand, along with sediment lode gold it from sailing while operating under the slag, natural precipitation stone in the sand, or gravel in the bottom of the river below the deposition of gold layer to form alluvial gold. Shakin features are: particle sizes, big as beans, small sand-like shapes. Color due to the level of different fineness, over ninety percent of red yellow, eight became yellow, green yellow slag became seven machine Which is good, Xining slag machine, Xinhua machinery provided by Gongyi City Xinhua Machinery Factory. Gongyi City Xinhua Machinery Factory (www.gyxinhua.com) strong, credible, in Zhengzhou, Henan handling equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xinhua machinery and you hand into the brilliant, for a better future!