Double ring fence is cold drawn with low carbon steel wire welding into nets tubular edge and nets face a body, the galvanized for anticorrosive processing, has the very strong corrosion resistance, then spray, jinsu, all sorts of color spray, jinsu; Final connection accessories and steel stanchions fixed. After a few years of the snow and wind and frost, sun, or if brightness is new, anti-ultraviolet radiation skills. The green lawn in the white metal nets foil below, is pure and fresh and clean and tidy. Structure: with low carbon steel overbraided wire welding into metal nets stamping bending roll after the cylindrical, with connection accessories and steel stanchions fixed connected. Advantage: high strength, good rigidity, beautiful modelling, view is broad, easy installation, feeling bright, light and practical, nets piece with the connection is very compact, whole feels good; 2 volumes circle that net surface strength increased significantly. USES: used for highway, airport, municipal green space, landscape flower bed, unit green space