Grassland network called bullpen network, is to protect the ecological balance A widely used in Europe, the Americas. Novel structure, strong precision, flat surface, uniform mesh, strong integrity, toughness, not together, slip resistance, compression and other characteristics are widely used: the zoo fence, fence construction sites, captive birds, slope greening, Greening network, safari, grassland, pasture fencing and other places in captivity grazing, especially applied to the pasture fence project for the realization of rotational grazing, pasture protection, can play a very important role, it can also be used for rare flowers, forests, planted park isolation protection.