Shanxi coke quality gems of sand, sand grain size 1-3 (factory direct)

Of sand, sand grain size is flint, calcined kaolin particles after crushing processed powder. Because of its high bulk density, physical and chemical indicators of stability, fire resistance and other characteristics and therefore manufacturing castable, refractory bricks, spray paint, ceramics, construction materials, precision casting and other high-quality refractory materials. General Specifications: 0-1,1-3,3-5,5-8, etc., but also according to customer requirements.