... packing 2,low pressure drop 3,high flux and high efficacity 4,long lifetime Metallic random packingThe advantages ... packing:lowresistance,low pressure drop,great separating,effect cold and heat resistonce,long lifetime. metallic Ladder ringMaterials:stainless ... steels,carbon steels,aluminium,copper,bronze,304L,316L and aluminium permeated steels,improved polypropylene,improved Nylon6,Nylon66, ...