Lottery gold is AU750, commonly known as 18K. Although its gold content is not as high as gold and its preservation effect is not good, it is characterized by fashion, high hardness and high labor cost. Gold is soft and easy to deform, and the labor cost is generally very low, which can't be compared. You can ask how much a gram of gold costs. Don't ask about the bonus. I won't tell you if I do, because everything is different.