Hello, I'm looking for small particle material. Please see a picture above. The left one is box shape and the other one is sphere shape. But the diameter of the sphere is very small like something around 20~100 μm. Both are made of same material of which modulus is over 20 GPa and both are homogeneous. Where can I ask to make these samples? Can you introduce me a company ? I hope the price of material is not much high. Thank you very much, always.