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.

In terms of manufacturing technology, natural gas cylinders for vehicles need to go through multiple processes such as precision stamping, welding, heat treatment, and testing to ensure the sealing, strength, and durability of the cylinder. Especially for CNG cylinders, strict pressure testing and burst testing are required to ensure their safety under extreme working conditions. Governments and industry organizations in various countries have also established a sound regulatory system, certified the qualifications of manufacturers of natural gas cylinders for vehicles, and conducted regular spot checks on products in the market to protect the legitimate rights and interests of consumers and public safety.