... , milk powder, metallurgy, electricity materials, copper powder, carbon black, active carbon, light carbonate calcium iron ore.Technical parameters ModelMaterialScreen cage size ... (mm) (diameter*length)Screen materialWSA 18-65Q235A Carbon steel180mm*650mmStainless steel orNylon screenSUS Stainless steel180mm*650mmWSA 30- ... : Honest Service Highest Quality!!! Airflow Screen Machine for Carbon Black