... 6mm aperture:1" width:0.5-2.5m 1" GI Chain Link Fence: material:galvanized wire wire diameter:2.2mm,2.6mm ... specific requirements.highways, railways, airports, rivers, schools, parks, factories, fences of the stadium(2) In order to prevent falling objects ... , falling rocks, railroad, highways, bridges, fences(3) retainer grass vegetation(4) concrete bed (inside the tunnel ...