Since the 1980s, the packaging industry has been an important consumer market for aluminum. In the 21st century, the application of aluminum in the packaging industry has developed faster.

The so-called double-zero aluminum foil is a foil having two zeros after the decimal point in the thickness of mm, and is usually an aluminum foil having a thickness of less than 0.0075 mm.

The smooth and matte side of the aluminum foil is related to the rolling process of aluminum foil production.

The most important production method for aluminum foil products is the rolling method.

The aluminum foil alloy grade adopts the four-digit system representation method. The first digit represents the series of alloys. The first digit is 1, representing the pure aluminum series. The first digit is 2-8.

Aluminum foil is a very thin aluminum coil, strip or sheet obtained after rolling of an aluminum alloy sheet. In China, aluminum and aluminum alloy sheet strips having a thickness of less than 0.2 mm are generally referred to as aluminum foil.