Special Aluminum Anodizing that creates ceramic-like surface. Very strong, scratch resistant and durable. It can be compared to Corundum , so strong it is. There is no sulfuric acid in electrolyte. There is no need to keep processing low temperature. Micropores of the anodized surface are significantly smaller in comparison to standard type two aluminum anodizing, and therefore it is possible to obtain better surface protection with minimal thickness of the protective layer.