How to make a metal key chainThe metal key chain is one of the commonly used key chains. It has the characteristics of high gloss, high bright color, high texture, and high collection value. But how is the metal key chain made? This article will introduce how to make metal key chains from three aspe

How to identify a good custom challenge coin?In the collection market, counterfeit custom challenge coins are becoming more and more popular, especially the rare custom challenge coin imitated by advanced technology, which makes it difficult to distinguish between authentic and fake ones. Fake custo

Crafting method of souvenir coinThe function of souvenir coins is to commemorate a certain major festival or politics, history, culture, outstanding people, historical sites, rare animals and plants, etc., the circulation of legal tender, and the collection is only a side function. What are our comm