Metal mesh types: highway fence network, highway fence network, traffic fence, highway fence board, highway fence.

Material of metal mesh: low carbon steel wire and Al-Mg alloy wire are selected and sprayed.

Braiding and characteristics of metal mesh: braided and welded; simple mesh structure, easy to transport, installation is not limited by topographic fluctuations, especially for mountainous, sloping, multi-bend zone adaptability is very strong. The product is durable, moderately low in price, suitable for large-scale use.

Guardrail belongs to large-scale and long-term outdoor facilities. The choice of protection system should be different for different atmospheric environment. The newly promulgated national standard GB/T 18226-2000 "Technical Conditions for Anti-corrosion of Steel Components in Expressway Traffic Engineering" divides the protection of guardrail products into four categories: galvanized, aluminized, galvanized (aluminium) post-coating and plastic-coating. In rural areas and areas where pollution is not serious, protective fence panels with single hot-dipped zinc layer or sprayed plastic can be used. In heavy industrial areas or coastal urban areas, especially in areas with acid rain, ordinary hot-dipped zinc or sprayed single-coated fence panels may lose their effectiveness before their service life, resulting in great maintenance costs. Increase. The corrosion resistance of hot-dipped aluminium barrier is better than that of common hot-dipped zinc barrier, but its application scope is not very wide due to its process, technology, cost and environmental impact. The protective system of hot dipping aluminium and spraying plastic is an uneconomical method compared with the protective system of hot dipping zinc and spraying plastic. The double protective system of galvanized sheet and spraying plastic can achieve better anti-corrosion effect in heavily polluted areas, especially in acid rain areas. The service life is greatly prolonged and the most durable protection method is obtained.