Volkan company has been producing and exporting of pumice stone, bims, mineral industry, minnig in nevsehir.Volkan pumice stone is used for Our quality is very good and capacity is very high. We can produce all sizes such as 2-3 cm 2-3 cm 3-5 cm, 0-20mm etc. our standart packing is 25 kg new pp bags but we can make all packing you wish. please contact with us for more details to start businessbest wishesNazire Onal