Features of 4''/5''square lighting pole: 
Steel Materials: Conform to ASTM-A 500 grade B: minimum yield strength of 46,000 PSI. 
Welding: Welding complies with BS5135/BS EN40. All sharp edges and burrs are removed. 
Finish: shot blasting & Being color powder coating; Or hot dip galvanization;
Certificate: CE certificate. 
Size (Height/Thickness):10-35FT / 11-7 gauge OR customized.
Options:
1. Polycarbonate spring loaded cover;
2. 12 top holes with polycarbonate bushing;
3. Reinforced cast iron hand-hole with ground screw;
4. Easily secured base cover;
5. Special packing for safe shipping;
6. Hot dip galvanized Anchor bolts;