巩义鑫 China Machinery Mining knowledge editing: Species mine. Most of the elements in the crust can mineralization, many types of electric slag machine manufacturers, roughly divided into metal ore and non-metallic minerals, non-ferrous metal ores also includes (precious metals), ferrous metals, rare earth and other electric slag machine franchise, types quite a lot. Metals including: gold, silver, lead, zinc, nickel and cobalt chromium iron and manganese, tin and antimony, bismuth and molybdenum tungsten titanium slag machine, nonmetal: graphite, fluorite, feldspar, quartz, barite, jade, diamond and so on. Lead is one of the earlier metal extracted from human beings out of lead-zinc ore. It is the softest of the heavy metal, but also more than one of the major metals, with blue-gray, the hardness of 1.5, the proportion of 11.34, melting point 327.4 ℃, boiling point 1750 ℃, good malleable, easily with other metals (such as zinc, tin, antimony, arsenic etc.) made from alloys. Zinc-lead-zinc ore extracted from the metal out of late, is the ancient seven kinds of non-ferrous metals (copper, tin, lead, gold, silver, mercury, zinc) in the last one. When zinc metal with blue and white, hardness 2.0, mp 419.5 ℃, boiling point 911 ℃ electric slag accessories, heated to 100 ~ 150 ℃, with good pressure, after rolling the proportion of 7.19. Zinc can be made with a variety of non-ferrous metal alloy or zinc alloy, most notably zinc and copper, tin, lead, brass composition, etc., can also be composed of aluminum, magnesium, copper and other die-casting alloys. Electric slag machine franchise, Xinhua machinery (certified), Jingdezhen slag machine provided by Gongyi City Xinhua Machinery Factory. Gongyi City Xinhua Machinery Factory (www.gyxinhua.com) is a leader in Zhengzhou, handling equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Xinhua leader in mechanical staff warmly welcome all inquiries negotiations to create a better future, Xinhua machinery.