Aluminum coils have a long service life. Equipment that requires heat preservation and anti-corrosion treatment generally has a harsh working environment, and humidity, corrosion, and exposure to the sun are commonplace. Metal materials such as iron and zinc are not resistant to corrosion and are prone to rust. Under harsh conditions, they will be completely corroded within a few years. In the past, every few years, enterprises had to carry out insulation construction again, which was a huge waste of manpower and material resources. However, aluminum coils do not rust, and their corrosion resistance is much higher than that of iron and zinc. Enterprises often only need one construction, and they can sit back and relax, saving time and effort.