What's the difference between Chow Tai Fook, Zhou Shengsheng, Zhou Dasheng, Leofoo, Luk Fook, Jin Luk Fook and Jin Dafu?

Chow Tai Fook, Zhou Shengsheng and Luk Fook are mainstream brands and also big brands. They have their own designers, unique cartoon images and classic styles, such as Chow Tai Fook's Ping An Baby series. Zhou Shengsheng's Daming pet phrase series, etc. We have also cooperated with some cartoon images to design cooperative funds, which can guarantee the appearance of products, workmanship and gold quality. However, brands like Zhou Dasheng, Leofoo, Jinliufu and Jindafu are a bit like shanzhai, especially some brands. It has been reported before that the gold content is impure and there are many impurities.