1. Gold: Gold is one of the most famous precious metals with high corrosion resistance and conductivity, which is widely used in jewelry products, investment and currency reserves.
2. Silver: Silver also has corrosion resistance and electrical conductivity, but its price is relatively low, so it is more commonly used to make tableware, jewelry and investment products.
3. Platinum: Platinum is a rare and expensive metal with excellent corrosion resistance, high melting point and catalytic performance, which is often used in automobile exhaust purifiers, fuel cells and jewelry products.
4. Palladium: Palladium is also a rare metal with high catalytic performance, which is mainly used in automobile exhaust purifiers, electronic equipment and medical devices.
5. Rhodium: Rhodium is a very rare metal with high catalytic performance and corrosion resistance, which is mainly used in automobile exhaust gas purifiers, glass and electronic equipment.
6. Iridium: Iridium is a very hard and dense metal with excellent corrosion resistance and catalytic performance, which is mainly used in pen tips, scientific instruments and alloys.
7. Osmium: Osmium is one of the rarest metals, with high density, high melting point and corrosion resistance. It is mainly used in the fields of making alloys, electronic equipment and scientific instruments.
The ranking of these precious metals is not static, and different evaluation criteria and angles may lead to different ranking results. In addition, the market price, demand and supply of precious metals will also change with time. Therefore, when referring to the ranking of precious metals, we should comprehensively consider the specific actual situation and demand.