Safety is the primary consideration in the design of natural gas cylinders for vehicles. All produced gas cylinders must comply with international or regional safety standards and regulatory requirements, such as ISO 11439, DOT 4L, ECE R110, etc. These standards provide detailed regulations on the design, manufacturing, inspection, installation, use, and maintenance of gas cylinders to ensure their safety and reliability throughout their entire lifecycle.

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.