Hi purity quartz sand. Contents of SiO2 min 99,9 and up. Graduation: 1 - 3 mm; 3 - 5 mm; 5 - 10 mm; 10 - 25 mm. If you can't find more Buying Leads related to your items, why not post your Selling Leads and Products instead?lated to your items, why not post your Selling Leads and Products instead?Show More