Seamless steel gas cylinder 1.ISO9809 2.OD:232mm,V:50L,S:5.5mm,WP:200Bar 3.High quality,best price and fast delivery Standard:ISO9809-1,Outside Diameter:232mm, Water capacity:50L, Wall thickness:5.5mm, Material:30CrMo, Height:1500mm, Weight:62kg, Working Pressure:200bar, Testing Pressure:300Bar