Aluminum Foil is a tool made of flattened aluminum, mainly used in cooking, packaging, cosmetics and heat insulation. It is mainly composed of aluminum and other materials (such as silicon) and has good flexibility and conductivity.

Aluminum foil is often used in cooking and baking, such as wrapping food for baking to keep the original flavor and shape of the food. Food packaging, thousands of tons of aluminum foil are used around the world to protect and package food, cosmetics and chemicals. Aluminum foil is also widely used in industry, medical care, construction and other fields, such as making batteries, wires and cables, building materials, etc.