Make the legs plastic (of the smooth, finely textured variety):
  1. Give it a darker gray tone
  2. Add some noise, but not too much
  3. Use the burn tool set to shadows to create some light shading
  4. Use the dodge tool set to midtones to lightly define your highlights
  5. Finish up with any necessary brightness/lightness/contrast/levels adjustments
Make the actual supporting column shiney metal:
  1. Start out with a midtone gray
  2. Use the sponge filter to give it some variety (not too contrasty, though)
  3. Use the burn tool set to shadows or midtones with a soft brush to add in some streaks vertically along the shaft. Don't make it black, but as dark as something it may be reflecting. Also make sure that your streaks aren't too wide, remember, the UV is representing the entire circumference of your cylinder and the streaks will appear wider on your model.
  4. Do the same with dodge set to highlights. Add more streaks. Make sure no two streaks are the same.
  5. (optional) add some scratches or other details with a grungy or pixely brush. They look good on dodged streaks.
  6. Make a new layer set to colour blend mode and grab a fairly soft and wide brush. Set the brush to a low opacity
  7. Choose a light, desaturated blue tone and start brushing over one of your highlight streaks. Stop when it has a nice blue hint.
  8. Repeat step 7 with a similar brown.
  9. Perform necessary hue/saturation/lightness/brightness/contrast/levels adjustments.