... -pyramidal,Columniform,polygonal or conical 2.Material:steel plate. Galvanised steel pole:1.Shape:Conoid ,Multi-pyramidal,Columniform ... ,polygonal or conical2.Material:steel plate.stainless steel compound plate,stainless steel plate,ect.(anticorrosion treatment with hot ... : We are manufacturer, specializing in producing all kinds of steel poles for more than 20 years, competitive with good ...