CNG cylinder Type 1: OD: 232/279/325/356/406mm Water ... :ISO11439-2000 Our company is a professional enterprise in cylinder field for more than 15 years.We specializes in ... steel gas cylinders,high purity gas,liquid gas,valves,CNG station equipments, storage cylinders,compressors and so on. Our ... the customers around the world. The main sizes for CNG Cylinder Type 1 FOR VEHICLE are: OD232mm: 20,22,24 ...