CNG cylinder Type 1: OD: 232/279/325/356/406mm Water Capacity: 20 ... gas cylinders and its related products,such as CNG cylinders (Type 1 & Type 2),CNG Kits, seamless steel gas cylinders,high purity ... customers around the world. The main sizes for CNG Cylinder Type 1 FOR VEHICLE are: OD232mm: 20,22,24,27.5 ... ,28,30,35,40,50LOD279mm: 60,80LOD325mm: 50,52LOD356mm: 57, 60,62,75,77,81,100L,113LOD406mm: ...