The dog breeds covered with gold include Tibetan Mastiff, Rottweiler, Doberman Pinscher, French Wolfhound, Kunming Dog, Laizhou Red, etc.

Gold coated with iron was first used on Tibetan Mastiffs, which refers to the two points above the Tibetan Mastiff's eyes and the two pieces on its chin. The palms of the limbs and limbs are yellow-brown, and the upper part of the palms is black, just like iron (black) covered with gold (yellow-brown). Later, iron-coated gold was also used for other dogs, which means that at least one parent contains genes from other dogs, which is reflected in the dog. Most of the dog breeds with iron-clad golden colors are ferocious and aggressive, with the blood of fierce dogs flowing through them.