... diameter(MM): 0.7—10 application areaactivated carbon widely in food ,medical ,mining and metallurgy,petrochemical,steel-marking ... catalyst filter charcoal carbon, cigarettes, etc., is widely used in food, medical, mining and metallurgy, petrochemical, steelmaking, tobacco, ... quality .2,storage , activated carbon should store in the Porous adsorbent , so in the transportation, prevent water.3, Tar kind ...