... Tank Group,certificate:CE,ISO9001:2008 2000M3 Oxygen Spherical Tank GroupSpecification:Material of Spherical shell plates16MnR, 16MnDR, 15MnNbR, 15MnNiNbDR ... , 20R, JIS GFEHITEN-610U2L, etc.Wall thickness of Spherical shell plates From 12mm to 62mm 12mm—62mmMaximum ... Width 3,650mm, length 12,580mm3650mm,12580mmMedium Ethylene, Propylene, Oxygen, Nitrogen, Ammonia, Vinyl Chloride, natural gas, argon, ...