Type

Here you can select a type of metal from the drop-down list. These types don't differ much from one another.

Finish

Here you can select from a range of surface types. You can select from:

• Polished: Use this type for surface with strong reflective properties. Don't forget to reduce the Roughness value.
• Galvanized: This produces a characteristic surface structure (see image)
• Cast, Sand Blasted: Make sure to define a large Roughness value here.