1. 2 micron to 500 micron
2. Aluminum content min. 99.75%; Si, max 0.01%; Fe max 0.01%
3. Good particle size distribution
4. Good specific surface area
5. Continuous and stable quality and quantity
6. Main Usage: packing and filling material, deoxidizing and desulfurizer for steel making, chemical catalyst, reducing agent, air-making agent for aeroconcrete, anti-corrosion painting, painting additive, etc.