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The 1. diameter is 0.1-1mm (100 micron to 1000 micron), and the particle size range can be adjusted.

2. uniform particle size distribution

3. good sphericity.

4. solid ball with smooth surface and good fluidity.

5. there is no concave and convex shape on the surface.

6. Qiao Feng patent product

7., especially for lead, bitumen, other metal materials, ceramic materials.