CPC Main Group C23D 5/00 Coating with enamels or vitreous layers 6 direct subcodes Child Classifications Navigate with arrow keys, Enter to open C23D 5/005 C23D 5/02 by wet methods C23D 5/04 by dry methods C23D 5/06 producing designs or letters C23D 5/08 Applying enamels non-uniformly over the surface C23D 5/10