I am engaged in the design and production of jewelry. Jewelry is made of all kinds of pearls, jade, precious stones and agates. Or made of gold, silver, copper and other materials, inlaid with various pearls, jade, precious stones, diamonds and other accessories, collectively known as jewelry, and gold and silver jewelry is mainly made of precious metals such as gold and silver, and becomes gold and silver jewelry after processing and making. Jewelry certainly includes gold and silver jewelry, and the two cannot be equated.