摘要：
The whole set of sand making production line designed by Hongxing can be used to process hard limestone, granite, basalt, river pebbles, smelter slag, and other materials, and is suitable for the application of hydroelectricity ,building, highway, city construction and other industries. We can deplo 阅读全文
摘要：
Zhengzhou Hongxing sand making machine(sand maker) has fine grinding, coarse grinding function, product into a cubes, packing density is so large , the iron contamination is extremely small, sand making machine of structure is so simple , low operating costs .Selection of artificial sand and gravel 阅读全文
摘要：
When the crushers used for the basalt, granite, river stone, and other high strength of hard materials, you must note that: design the reasonable crushing technology, for the investment, you should consider the stone production line cost, and also consider the investment cost in the local place.Ther 阅读全文
摘要：
The mining industry in many developing and third world countries has, over the last ten to fifteen years, undergone a great growth period. New methods of finding minerals have been discovered and it has caused old mines to be re-opened and new mines to begin. Mining involves a fairly simple principl 阅读全文
摘要：
At present, mobile crusher has been widely used in metallurgical, chemical, building materials, water, electricity and other material processing fields often need movable, especially used for the crushing in highway, railway, hydropower engineering, construction waste processing fluidity. The users 阅读全文
摘要：
In the operation of a cone crusher, it will generate friction between the mutual contact surfaces and surfaces with relative motion, it consume energy for overcoming the friction, which will reduce the efficiency of the crusher. The friction power will be converted to heat, which is adverse to the m 阅读全文
摘要：
As the foreign mining developed slowly since the 1980s, making the progress of the study is not large. Large-scale domestic state-owned mines as little investment, there is no development, and small mines due to local demand for raw materials, ranging in recent years, a certain development.Mining ma 阅读全文