... gas cylinders and its related products,such as CNG cylinders (Type 1 & Type 2),CNG Kits, seamless steel gas cylinders,high purity gas ... ,liquid gas,valves,CNG station equipments, storage cylinders,compressors and ... the customers around the world. The main sizes for CNG Cylinder Type 1 FOR VEHICLE are: OD232mm: 20,22,24,27 ...