Gold bars make bracelets recyclable. Gold is highly recyclable, and bracelets made of gold bars can be recycled. When recycling, gold jewelry will be melted into gold raw materials for reprocessing. The price of recovered gold will be determined according to the purity and weight of gold. The higher the purity, the higher the price of the recovered gold bracelet. The investment varieties in the gold market are mainly divided into physical gold investment and gold investment derivatives derived from physical gold. Derivatives mainly include gold futures and gold options. The physical gold investment mainly includes gold bars, gold coins and gold ornaments. Gold bars come from ancient currency circulation and are more used in the fields of collection and investment. All the major banks and financial institutions in the world reserve and circulate their own signature gold bars, such as the standard gold bars of Shanghai Gold Exchange.