are suitable for all kinds of traffic road, causeway, village road, yard, mining, industrial park, the industrial park is a national or regional government according to the inherent requirement of their own economic development, through administrative means to draw an area, gathering all kinds of factors of production, scientific integration within a certain space, improve industrial intensive strength, highlight the characteristics of the industry, the optimization function layout, make it adapt to market competition and the modernization of industrial upgrading industry collaboration production.'