May 30, 2021
The beauty of metal powder
Hello everyone! I am aluminum powder. "Silver gray metal, light weight, highly flammable, and excellent thermal conductivity" are all my a...
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May 30, 2021
Hello everyone! I am aluminum powder. "Silver gray metal, light weight, highly flammable, and excellent thermal conductivity" are all my a...
May 12, 2021
In ancient Egypt, artisans beat and stretched gold into gold leaf, and put it on stones, bones, etc., to make crafts or sacrifices. In the above pro...