Our products are widely used in market for natural gas vehicle, bus, taxi, van, truck, marine boat, etc; We hope cooperation with you and to be your registered supplier; currently we produce ISO11439:2000 with diameter 219mm, OD232mm, OD316mm, OD325mm, OD356mm, OD406mm CNG-1 & CNG-2 cylinder for NGV(Natural Gas Vehicle); ISO11120 cylinder for CNG trailer; ISO9809-1 cylinder for CNG station; Capacity from 20L up to 200L.