ISO9809 Gas Cylinder 1.Material:30CrMo/34CrMo4 2.OD:229mm, V:40L,S:5.2mm,L:1250mm, ... China for manufacture of gas cylinder.ISO9809-1,Outside Diameter:229mm, Water capacity:40L, Wall thickness:5.7mm, Material:34CrMo4, Height:1250mm, Weight ... :53kg, Working Pressure:200bar, Testing Pressure:300Bar ISO9809 229-40-200 gas cylinder