traffic signal pole 1. Material high quality Q235 hot rolled steel 2. Shape of Pole,Round conical; Octagonal conical; Straight square; Polygonal 3. Hot galvanization 4. Bolts and nuts are through zinc processing 5. Pure polyester powder painting, color is optional 6. Mounting Height optional 7. Short construction cycle, less land occupation, low overall 8. Certificate ISO9001-2000 9. Life time: 20-30 years.