1. Raw material is Al 99.85% or above, with high purity of aluminum, and low impurity content, without foreign inclusions.
2. The appearance is silver-gray, with high sphericity.
3. Uniform particle size, very narrow particle size distribution, Oxygen content < 10 ppm, high tap density.
4. Double grading system can satisfy customers requirement of particle size distribution accuracy reachable +/- 0.5μm