... /50/60/70/80/90/100mm Finish:self color and sandblast Special Forged and Cast Grinding Steel Ball Carbon steel ... completely.4.ApplicationLight duty bearing,conveyer belt,bicycle and automobile parts,slide bearing,caster wheels,computer peripheral ... electrode.Cast Steel Components (Fittings); Wrought Iron Ornamental Products and Steel Stamping Components (Fittings), include Spears, Flowers, Leaves, ...