... galvanized steel. 2) Type: taper round or octagonal pole Steel Traffic signal pole1.Shape:Conoid ,Multi-pyramidal,Columniform,polygonal or conical2. ... materials are also avaliable on requesr)3.Jointing of pole with insert mode,innerflange mode,face to face joint ... years on product design, production. Our main products are power pole, communication towers, street lighting poles, steel bracket and so ...