CNG cylinder Type 2: OD: 325/340/356/406mm Water Capacity: 20-180L WP: ... its related products,such as CNG cylinders (Type 1 & Type 2),CNG Kits, seamless steel gas cylinders,high purity gas,liquid ... around the world. The main sizes for CNG Cylinder Type 2 FOR VEHICLE are: OD325mm: 50,55,60,65,70,80 ...