In comparison, aluminum anti-theft caps can overcome the above-mentioned deficiencies of plastic caps. Of course, aluminum bottle caps also have certain defects, such as different colors on the sides of the bottle caps, which are prone to paint falling and lack of appearance, but these problems can be technically solved. Aluminum anti-theft caps are made of high-quality special aluminum alloy materials, which are mainly used for the packaging of alcohol, beverages (including gas and non-gas) and medical and health products.

There are nearly 200 aluminum cap production plants in China, with an annual designed production capacity of about 9 billion pieces, of which nearly 30 production lines have been introduced, with an output of more than 5 billion pieces, which can produce nearly one hundred types of caps. Most aluminum bottle caps are processed on a production line with a relatively high degree of automation, so the requirements for the strength, elongation and dimensional deviation of the material are very strict, otherwise it will produce cracks or creases during processing. In order to ensure that the bottle cap is easy to print after being formed, the surface of the bottle cap material is required to be flat, free of rolling marks, scratches and stains. The production of aluminum bottle cap materials can be made by hot rolling or continuous casting and continuous rolling, which are made by cold rolling.

At present, China's manufacturers of anti-theft cap materials use continuous casting and rolling billets, but according to anti-theft cap manufacturers, hot-rolled billets are superior to cast-rolled billets in the use of anti-theft cap materials.