Specifications: 14--18m galvanized, lightpole. Top caliber: 70--90mm Bottom Caliber: 170--220mmThickness: 4.7--5mm Octagonal & roundMaterial: High quality steelSS400/Q235A Hot-zinc-plated 's been painted and polishing procedure before powder coating.City square, station, quay, goods yard, highway, stadium, overpass, etc.. Standard: By Grade IP23 of the protection of electric apparatus cases By Grade IP65 of the protection of lamps and lanterns