Hollow Ball System

Bubble Alumina

Bubble alumina is made of industrial aluminum oxide after melting and rapid blowing,it is characterized by light weight,closed hole,high temperature resistance.

Polycrystalline Composite Hollow Spheres

Polycrystalline composite hollow spheres are primarily manufactured by melting A+ grade industrial low-sodium alumina powder, premium custom-grade light-burned magnesia powder, and specialized raw materials.
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