prov:value
| - The particulate utilized in the performance of the present invention can comprise sand, bauxite, sintered bauxite, ceramic materials, glass beads, foamed ceramics or glass materials containing voids produced by gases or other processes such as hollow mineral glass spheres sold under the tradename SPHERELITE by Halliburton Services, Duncan, Oklahoma, nut shells, coke, plastics, teflon beads or an
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