A Journal of our Travels
Depending on the Classification Code, the number 1, 2, 3, or 4 will appear within a 10mm circle. The lower the number, the more durable the finish.
Classification Code 1
These are hot dipped galvanised gas bottles.
Classification Code 2
These are abrasive blasted, then coated with a base coat and a zinc rich top coat.
Classification Code 3
These are sprayed with a single layer of a zinc coating.
Classification Code 4
These are sprayed with a primer and a polyester top coat.
Taken from Elgas website
