... ,great separating,effect cold and heat resistonce,long lifetime. metallic Ladder ringMaterials:stainless steels,carbon steels,aluminium,copper,bronze,304L,316L ... desulfuration systems,ethyl benzene separation,and Iso-octane/toluene systems.Type:Dg25 SpecificationD*H*mm:25*12.5*0.6Heaping Num ... :220 Void spacem3/m3:0.93Dry packing factor:273.5 Type:Dg38 SpecificationD*H*mm:38*19*0.8Heaping Num: 31890 ...