1. Gold (Gold): Gold is one of the most well-known precious metals, with high corrosion resistance and electrical conductivity, and is widely used in jewelry products, investment and currency reserves.
2. Silver (Silver): silver also has corrosion resistance and conductivity, but the price is relatively low, so more commonly used in the production of tableware, jewelry and investment products.
3. Platinum (Platinum): Platinum is a rare and expensive metal with excellent corrosion resistance, high melting point and catalytic properties, commonly used in automotive exhaust cleaners, fuel cells and jewelry.
4. Palladium (Palladium): Palladium is also a rare metal with high catalytic properties, and is mainly used in automobile exhaust purifiers, electronic equipment and medical devices.
5. Rhodium (Rhodium): Rhodium is a very rare metal with high catalytic performance and corrosion resistance, mainly used in automobile exhaust purifiers, glass and electronic equipment and other fields.
6. Iridium (Iridium): Iridium is a very hard and dense metal, with excellent corrosion resistance and catalytic properties, mainly used in the manufacture of pen tips, scientific instruments and alloys and other fields.
7. Osmium (Osmium): Osmium is one of the rarest metals, with high density, high melting point and corrosion resistance, mainly used in the manufacture of alloys, electronic equipment and scientific instruments and other fields.
These precious metal rankings are not set in stone, and different evaluation criteria and perspectives may lead to different ranking results. In addition, factors such as market prices, demand and supply of precious metals can change over time. Therefore, when referring to the precious metal rankings, it is important to take into account the specific realities and needs of the situation.