ĐÁ HẠT CANXI CACBONAT 0.01 mm – 0.1 mm 0.1 mm – 0.4 mm 0.4 mm – 0.8 mm 0.8 mm – 1.2 mm 1.2 mm – 3.0 mm 3.0 mm – 5.0 mm 5.0 mm – 20 mm
