Item	Unit	QXJ-107	QXJ-106Q	QXJ-105
Shape	/	sphere	sphere	sphere
Specification	mm	4-6	5-7	4-5
Appearance	/	gray black	gray black	gray black
Crushing strength	N/piece	120	120	110-120
Bulk density	Kg/L	0.7-0.8	0.9-1.1	0.9-1.0
Specific surface area	m2/g	120-160	120-150	120-160
Specific hole volume	ml/g	0.3-0.4	0.24-0.3	0.3-0.4
Ni	%(m/m)	16	≥12	≥21
TiO2+auxiliary	%(m/m)	/	6-8	≥8
Al2O3	%(m/m)	75-77	margin	margin
Valid period	year	5	5	5

Packing
      50L in polypropylene woven bag lined with membrane bag;
      far away from moisture, moist and sunlight