CNG cylinder for vehicle -1q1w122q111 12 1)Standard:GB17258/ISO11439q 2)Out Diameter:232mm,279mm,356mm 3)Water capacity:20L 180L 4)Best pr 9897123 Our CNG cylinders are made according to international standard ISO11439. Our cylinders include type I seamless steel cylinder, type II hoop glass fiber wrapped composite cylinder with steel liner, type III carbon fiber wrapped composite cylinder with aluminum liner. By now our CNG cylinders have been exported to many countries and gained gre at popularity on world market.