| Model | Particle Size (D50) | Impurity content |
| DND-30 | 25-40nm | ≤3% |
| DND-50 | 40-60nm | |
| DND-100 | 80-135nm | |
| DND-R | Unclassified product, primary particle size 4~7nm |
Beijing Guoruisheng Technology Group Co., Ltd.
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