Q Minerals (XinYi) is a professional manufacturer and exporter of Fused Minerals which are widely used for Investment casting , Refractory and Ceramic , Abrasives , including : 1.Fused Silica & Silica powder 2.Brown & White Fused Alumina 3.Steel shots & steel grits abrasive 4.Black & Green Silicon Carbide For further information about our products , please kindly visit our website or contact by email or fax . We would like to reply you ASAP for every question . Qiao xiangchun