Now we produce Type1: Steel Liner Cylinder for Vehicle; Type 2: Composite Hoop-Wrapped Cylinder for Vehicle; LNG tank. Our CNG cylinders are produced according to ISO 11439 (for Golbal Market), ECE R110 (for EU), NZS5454 (for Pakistan), DOT-FMVSS-304 & NGV2:2007 (for USA). It can be widely used in cars, trucks and buses due to its characteristics f cleaness and energy saving.