... -0.8,Φ0.8-1.0,Φ1.0-1.2,Φ1.2-1.4,Φ1.4-1.7,Φ1.5-2.0,Φ2.0-2.5… or any customize sizes ... in high rotation speed; low frictioncoefficient makes the lower abrasion to the equipment.High density makes higher mill efficiencyAchievements:Successfully applied ... dispersion of heavy-calcium carbonate, painting and coating.Successfully exported to the countries of Europe, America and Southeast Asia, used in ...