Big Size Flint Pebbles 8-10cm Round Gravel

Big Size Flint Pebbles 8-10cm Round Gravel. High Purity Silica Content: SiO2 content is greater than 99.31% with low Fe2O3 levels. Customizable Sizes: Available in standard sizes 1-15cm or custom requests. High Hardness and Density: Hardness around 8 with volume density of 2.66-2.68g/cm3. Low Abrasion Rate: Actual abrasion rate is less than 1.35 for long-lasting performance. Free Sample Testing: Free samples available for quality testing before bulk orders. Wide Industry Application: Suitable for ceramic, glass, cement, and electric porcelain industries. Customizable Packaging: Mark and label options are customizable per customer request. Fast Delivery Options: Samples in 3 days, test orders in 7 days, mass production in 10-14 days.