1.Specification: from 20L to 145L, 2.OD:232mm-406mm 3.Material:34CrMo4 4.ISO11439-2000,ECE R110 CNG CylinderSpecification: 1. the specification :from 20L to 180L,2.the outer diameter :204mm,232mm,267mm,279mm,325mm,340mm,356mm,406mm.3. Material: 34CrMo44.ISO11439-2000 SpecificationsLiner O.D.Composite O.D.Water CapacityLengthEmpty WeightWorking PressureMMMMLTSMMINKGSBARCNG2-G-325-40- ...