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Al2O3	17-23%
SiO2	>70%
Fe2O3	<1.0%
CaO	<1.5%
MgO	<0.5%
K2O + Na2O	<3.5%
��	<1%

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��ˮ�� (%)	<0.5
�@�� (%)	<1
�w�e�ܶ� (g/cm3)	2.3-2.35
Max. ��ض� (��)	1000
Ī��Ӳ��(scale)	>7
�� (%)	>99.6

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�ߴ� (mm)	�� (mm)	�ȱ��e (m2/m3)	��϶�� (%)	�ѷe��(sh��) ��/m3	�ѱ�� (kg/m3)
25	3	210	73	53000	700
38	4	180	75	13000	570
50	5	130	78	6300	540
80	8	110	81	1900	530