Copper than silver and inexpensive. China has a lot of copper slag known how much money, if Dexing, Tongling, Anhui, Shanxi Zhongtiaoshan, Baiyin plant, Dongchuan, Yunnan, Tibet Yulong and so on. It is mostly massive, bell emulsion, hull shape and concentric stripes. His literacy made him realize that it is looking for copper "mineralization", he took with him to report the mine ore samples. Copper yellow chalcopyrite and pyrite (iron sulfide) is sometimes difficult to distinguish with intuitive, just take zoned mineral streaks on Cuci may be clearer: green and black are chalcopyrite; black is pyrite mine. Silver mining in the roadway excavation techniques, although basically mechanized, but the lower level. Currently shaft excavation is still a traditional jackhammer drill, rock grab grab mounted machine Cinder machine prices, ordinary type or bucket slag and other technology-based promotion. Grilled in supporting technology slag, wood and concrete support current share is still large, bolting to use only part of the mine, widely used abroad anchor sprayed with metal mesh and other new technologies not yet adopted country. Cinder machines offer, Harbin 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!