Will pure gold become black? 2022-10-04 ·Gold jewellery Will there be slight black black between gold? For example, friction between the ring and the ring of the necklace Article précédentWhat material's jewelry is not easy to oxidize and black?Article suivantDoes anyone know where there are a large number of jewelry factories recruiting! Continue Reading Can I buy a large number of 999.9 pure gold bars from domestic gold producers?2022-10-20