... , high chemical stability, and excellent heat endurance ceramic random packings are common regular packing that they ... in industries of petrochemical, chemical, metallurgy, gas and oxygen generation.Available sizes: 25mm,38mm,50mm,80mmTechnical Specification Size ... (mm)Surface area (m²/m³)Free volume (%)Number per m³Bulk density (Kg/m³)Dry Packing Factor (m-1)Φ 252207354000620565Φ 381507513400570356Φ ...