These are made of premium steel, an alloy made for architectural trim, covered with hot-dip galvanizing with a dense zinc layer, effective anti-corrosion, protect the rod, makes the street light pole robust, slow down again.Assemble each section pole with screw, connection the pole base to the rebar cage, more sturdy than the expansion screw installation.example garden lights, different street lights, sunshade sail, cameras and other lighting fixture, but the pole post is mainly used to fit