... . single/double arm 4. polygonal, conical, round,etc Road light steel poles Material:steel Q235,Q345,SS400,S235JR,S355JO,ASTM,etcMounting Height:6 ... , conical, octagonal, square, mid hinged, polygonal shafts are made of steel sheet that folded into required shape and welded longitudinally by ... :Pure polyester powder painting, color is optional high quality and low price road light steel poles