CNG Steel Lined Wrapped Cylinder for Vehicles manufactured by our company fulfill the design and manufacturing requirements of ISO 11439:2000 Gas cylinders --- High pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles. Our products are designed for bus, car and for a wide range of various Natural Gas Vehicles applications with good low temperature toughness, fatigue resistance, low weight, high safety, and etc. carbon fiber cylinder,type II cylinder, composite cylinder Attention: Maggie Tang Mobile Phone:0086 13998363051