Premium Grade C Flint Pebbles (2-4cm) for Cement Milling

Premium Grade C Flint Pebbles (2-4cm) for Cement Milling. High Purity Silica Content: SiO2 content is >=99.31% with Fe2O3 <=0.018% for superior grinding performance. Customizable Sizes: Available in normal sizes 1-15cm and custom sizes according to customer requests. High Hardness and Density: Hardness around 8 and volume density >=2.66g/cm3 for low abrasion and high efficiency. Wide Industry Application: Suitable for ceramic, glass, white cement, zirconium silicate, and electric porcelain industries. Customizable Packaging: Mark and label are customizable to meet specific client branding requirements. Free Sample Availability: Free samples are available for testing before placing a formal order. Fast Delivery for Samples: Sample delivery is completed within 3 days via express courier services. 20+ Years Export Experience: Manufacturer with over 20 years experience serving 180 customers in 40 countries.