The measure of a country's level of economic development, infrastructure construction is required is an indispensable. It is the basis and prerequisite for the economic and social development, grasp can increase stamina for the development of the energy savings, and construction is lagging behind, it may become a bottleneck restricting the development of. In infrastructure, transportation construction, bridge construction and real estate construction needs aggregate this raw material.

It is understood, aggregate before we use are not processed, but along with the vigorous development of economy in our country, the original sand stone has been unable to meet the huge market demand, this demand led directly to the crusher which is a mining machinery and equipment production. Commonly used centralized crusher equipment including jaw crusher, impact crusher, impact crusher, cone crusher etc.. Aggregate is the sand, egg (gravel) referred to as the stone, stone, stone, stone and other materials. Particle size of 5mm aggregates known as coarse aggregate, namely we often say that the stones, particle size of less than 5mm aggregates known as fine aggregate, also known as the sand. Is the main construction material such as concrete structures.

Due to the recent years see good prospects for development of infrastructure industry and the national policy to encourage, large and small around the mining machinery enterprises build up gradually, the competition has become fierce. Crusher, sand making machine, contribution of jaw crusher sand washing machine and other equipment in the market like a raging fire. Many crushers mustering the strength, to share in the market this big cake in a cup of a thick soup. In this case, how to choose the crusher is suitable, mineral enterprises together to consider the problem.

From nearly two years of development we can see, Shanghai Chang Lei constantly and China Railway Group cooperation, not only Chang Lei can make a contribution in the national highway, railway construction, and provides strong support for the development and the level of improvement.