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（一）cone crusher simple introduction: Cone crusher is broken and the smaller, the three basic models, finely commonly used for low hardness of stone material level 2 or level 3 and above of broken. Cone crusher is widely used in metallurgy industry and building materials industry, construction industry, chemical industry and industry, used in silicate crushing […]

1 to establish a mine design system for mechanical safety  Mining machinery and most modern machinery development! Tend to large, heavy and high-speed, intelligence and miniaturization. As it involves a lot of security issues, theories and methods of a single discipline has not solve the problem, as soon as possible to build a machine to […]