Cone crush is a major device used in metallurgy, construction materials, chemical industry, hydropower, road construction and other industrial sectors for secondary crushing and fine crushing of all kinds of ores and rocks with varying hardness, especially for the secondary crushing and fine crushing in dressing plants.

Mine car is the industrial truck on narrow gauge railway for transporting bulk materials such as coal, ores and barren rocks, etc. Mine car is generally pulled by locomotive or winch. For mine cars with more than two wheel sets, two wheel sets are transferred to a car with turntable for the convenience of passing through the curve, and this kind of car is called bogie.

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