gold plated jewelry wholesale in usa On Saturday's LOGO steel print picture, I bought a bracelet today on Saturday, and the steel printing foot gold is 999K. I want to know what K represents

By huanggs
gold plated jewelry wholesale in usa On Saturday's LOGO steel print picture, I bought a bracelet today on Saturday, and the steel printing foot gold was 999K. I would like to know what K represents the representative of my bracelet.