Know more information, can contact us directly Item, flint pebbles/ceramic grinding media/ flint pebble Hs code, 25171000.00 Application, Flint pebbles widely used as ceramic grinding media and filling material to grind the clumpy raw materials to the fine powder in ball mill. Size, 2-4cm, 4-6cm, 6-8cm, 8-10cm, 10-12cm, 12-15cm Re-selected size:1-3cm, 3-5cm, 5-7cm Other sizes can be made according to customers' requrest. Moq, 1 ton Sample, available Product chemical composition and physical properties Sio2 >= 99.31% Al2o3