In 2010, our nation gives a great quantity of support for infrastructure. This leads the rapid growth of our mining machinery industry. The year of 2011 is the first year of “the 12th five-year plan” in China. The nation promotes the urban development actively and steadily, thereby protecting and improving the people’s livelihood. We can observe by these measures that the urban infrastructure gives birth to boundless business. In the view of domestic market, the enthusiasm of local investment is quite high at the beginning of 2011. In the early days of the first quarter, there are many new projects. The following investment scale is quite large; meanwhile, with the gradual improvement of enterprise revenue, many companies begin to increase the enthusiasm of investment. It is predicted that the revenue of mining machinery industry will increase greatly in the first quarter. According to another forecast, our contract foreign projects will also increase continuously, among that, petrochemical complex, rail transit, electric power, electrommunication and other fields have great share. Therefore mining machinery will be used widely. Facing the construction peak of china’s high-speed railway, the market demand is fierce very much. However, due to the construction of the high-speed railway, the demand of gravel aggregate and concrete aggregate demand is relatively high. The high production equipment needs to be purchased. The equipment output of gravel aggregate in the new state is paid more attention. Crawler mobile crusher gathers material receiving, crushing and transmitting as an integral whole, just like a mobile crushing and processing plant. The work efficiency and operation cost are both superior to the same level or higher level aggregate line. Mobile crushing plant can compose a power crushing production line by the union of crusher, sand maker, vibrating screen and so on. Hongxing crawler crushing plant has the characters of the advanced design,...