The metal ore mining industry segment covers the extraction of metal ores, primarily gold, silver, iron, copper, lead, and zinc. These naturally occurring minerals have a variety of industrial purposes: gold and silver are primarily used in jewelry and high-end electronics, iron is used to produce steel, copper is the main component of electrical wiring, lead is used in batteries, and zinc is used to coat iron and steel to reduce corrosion and as an alloy in the making of bronze and brass.
The rapid development of China mining machine will supply advanced level and high efficient equipment for the development of coal, metal and nonmetal mining and meet the demands of national economy development for energy and raw material. The rapid development of mining machine, grinding machine from Henan Hongxing is bound to go the direction of innovation and technology development.
Large environment-friendly and high efficient grinding machine which adopts domestic advanced technology becomes the latest darling. In the fourth ASEAN Expo exhibition, Hongxing grinding machine attracts the attention of various foreign merchants and leave good impression on them, which laid a solid foundation for today’s cooperation.
As the large-scale grinding machine manufacturer in China, Henan Hongxing has always been focusing on the technological development and walking the road of “independent innovation” around the plan” upgrading technology level of product, promoting product quality”. Whether it is from ultrafine grinding machine to super large grinding machine, or from the traditional Raymond millto vertical mill or vertical fine mill, Hongxing is always walking in the forefront of each product upgrading. All of these vigorously promote the technology upgrading, guaranty the leading position of Hongxing machine in the market and drives the sustainable development of enterprise. To a service-oriented brand integrity,As the professional manufacturer of complete sets of mining machinery, like cement plant, Henan Hongxing is always doing the best in products and service.rock crusher:http://www.hxjqchina.com/n69.html
The slaves, prisoners of war and the people who did criminal things had forced to work on the mining areas. And the kids were used to carry the ores from the underground mining area to the outer surface. Then the people who are so weak to work underground had made to separate the rich and poor metals.
In some countries they used “Black Powder” to disclose ore veins and earth to loosen. Then as the development occurs, the people have found a plenty of techniques to find the metals, minerals and other precious stones.
Magnesium is the third most used metal, following iron and aluminium. Magnesium derives its name from magnesite, a magnesium carbonate mineral, and this stone in turn is told to owe its name to magnesite dumps found in Magnesia, a region in the antique Greek region of Thessaly. The British chemist Humphry Davy is said to have manufactured a mixture of magnesium in 1808 by electrolyzing damp magnesium sulfate, utilizing mercury as a cathode.
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