CNG cylinders are typically made of high-strength, corrosion-resistant materials such as alloy steel or aluminum alloy to ensure their safety and durability in high-pressure and complex usage environments. These gas cylinders require precise manufacturing processes, including stamping, welding, heat treatment, testing, and other steps, to ensure compliance with international or regional safety standards and regulatory requirements.

The manufacturing materials of natural gas cylinders for vehicles are mostly high-strength alloy steel or aluminum alloy, which not only have excellent pressure resistance and corrosion resistance, but also reduce the overall weight of the vehicle and improve fuel economy while ensuring safety. In addition, with the advancement of technology, composite materials such as carbon fiber reinforced plastics have also begun to be applied in the high-end market, further improving the strength and lightweight level of gas cylinders.