red rare earth polishing powder a.BK7.B270.K9 and other neutral glass. b.Abrasion hardness 56-80 glass. red rare earth polishing powder

Chemical formula	Content		Physical Properties	Data
CeO2	≈68.2		Central granularity    D50	4.2-4.60 um
La2O3	≈25.38		Maximum granularity  D100	≤13.54um
Pr2O3	≈5.26		Suspension	60-80
Other content	≤1		PH value	6-7
			Foam	comparison standard sample
			Impurity sand	comparison standard sample