Product Name: Compressed Natural Gas Steel CylindersPlace of Origin: ChinaJindun compressed natural gas steel cylinders for vehicles are mainly used for long term fixing on cars to contain compressed gas fuel. It enjoys the advantages of high pressure, large capacity, lightweight, high safety and dependability. They are mainly used for taxis, minibuses, buses and cleaning cars. It reduces both automobile operation costs and air pollution in cities. It is a strongly recommended environmentally friendly product. Specifications: 1) Material: 34Mn2V, 30CrMo, 34CrMo4 2) Outside diameter: 219-279mm 3) Water capacity: 20-90L