CNG cylinder Type 1: OD: 232/279/325/356/406mm Water Capacity: 20- ... cylinders (Type 1 & Type 2),CNG Kits, seamless steel gas cylinders,high purity gas,liquid gas,valves,CNG station equipments, storage cylinders,compressors ... customers around the world. The main sizes for CNG Cylinder Type 1 FOR VEHICLE are: OD232mm: 20,22,24,27.5 ...