1. Roll different specifications of steel plates into conical lighting poles or polygon ones according to customers requirements. 2. Weld coiled steel seam by argon arc welding. 3. Weld the flange and the lamp arm on the lamp pole. 4. Hot-dip galvanizing of the lighting poles. 5. After shaping and polishing, the surface of the poles are sprayed with anti-corrosion treatment. 6. Packing and shipment of lighting poles.