Slope area is undulating road construction products, in addition to the terrain slope gradient, rock subordinate status area, but also on construction factors. Slope gradient and slope safety is inversely related to the amount of slope construction project is also inversely related. Road slope gradient design segments, based on terrain and rock conditions, slope safety requirements, a comprehensive analysis of project cost savings needed to be determined. Guangxi highway slope Slope Design of 45 ° ~ 70 ° between the brightest and even sections of the slope of each is different. Slope gradient on the slope of the slope is greater than under the rocky outcropping on the slope is greater than the soil slope. Redistribution slopes greater than 45 ° easily lead to soil erosion and the light, the water, the greater the slope of the sow condition deteriorated condition slope bit more significant difference, seeds and seedlings more easily washed out with rain. Barbed wire not pan in machinery, electronics, pharmaceuticals, petrochemicals, glass, food drying, plastics, paper fiber, tubes and other industries, and is also widely used barbed wire to get all aspects of agriculture and life. Barbed wire and more recently in Rock grass respect. On the rock slope using support barbed wire grass dusting of new technologies, in order to achieve slope protection, but also play a landscaping effect. Currently barbed wire Uses: used Meishan, mining, construction, farming, glass, oil, metal products, petrochemicals, construction machinery, protective nets, meshes, nets crafts, food machinery with nets, cooking utensils net, wall body net, also can be used as classification screening, liquids and slurries of filter solid material and the like. Weaving and characteristics: after rolling the first series, two-way separated wave bending, locking bending, flat-top bending, bending-way, one-way separated wave bending, solid structure.