This kind of fencing mainly used in the place where need high security (for example : airport,corps,spaceflight center and so on). Material for the panel:welded by 5.0mm strong carbon steel wire; Mesh size:50mmx100mm or 50mmx200mm; Panel size:1800mmx3000mm; The panel has V-Beam which is used for enhancing the utiwallop; Post: 60mmx60mm square post and the top is welded with "V" shape arm; Connection between the panel and post: clips or rivet; The panel and the post are all galvanized and then coated with electrostatic powder; color of the surface: we use the usual RAL series(on the customer's request) After galvanized and pvc coated unti-corrupt ,the longevity of the product can be as high as 10 years or more. Razor wire will be put at the top of the V shape mesh and enhance the secutity.