stones powder

Our factory is located in Taihang Mountains, rich walnut, apricot, large (small) Dates and other sources. dwelling. The yellow and brown or red powder products, high hardness, acid-alkali resistance, immersion characteristics Sealing oil drilling wells, pipelines underwater tunnels good supplementary material. Head major specifications : 6-10. mesh 10-20, 20-40 mesh 30-60mesh, 60-100 mesh, 100-200 mesh