Humans has been found 280 kinds of minerals are copper, the main and only 16 kinds. It is soft, rich extensibility, a little beat can be processed into tools and household items. Only seven hundred thousandths of copper content in the crust, but in 4000 years ago on the use of their ancestors, this is because the surface copper deposit where there are often more than 99% purity purple natural copper ( also known as copper). The world's proven reserves of about more than 600 million tons of copper, Chile's largest reserves of countries, accounting for about one-third of the world's reserves. Silver type and occurrence of diversity, its mining method is also different, but together, in order to pit mining, and few open-pit mining in the mines. Pit mining in general use shaft development, then use the surface of shallow mine adit - inclined joint development. The main method used for ore mining method remain accounted for 60%, followed by the filling method, caving, sublevel open stoping method and comprehensive law. Since China for silver mining to shallow hole mining method-based machines offer slag, ore loss and dilution rate is high Cinder how much money, up to 16% to 35% slag machine, and foreign high-grade veins like or lamellar silver to backfill mining mainly ore loss and dilution rate is much lower. At present, Shandong has already shallow hole Shilipu silver mining method to the dry-filling method, while using a belt, etc. BEDDING mining technology, the silver loss rate and dilution rate from the original 19.65 percent and 31.3 percent, down to 6.09% and 16.44%. Mine slag machine, slag machine, coal slag machine 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!