rs vice-white fused alumina size sand (barmac plastic) and micropowder (acid washing) produced by rui shi plant is characterized by without bursting, without pulverising and high bulk density, good flow property etc, which can be widely used to manufacture variety of shaped refractory material products, corundum castable refractory,and other monholithic bulk refractory and caustic-burned corundum refractory products. we have strict control about company & quality;our service is full-around and first-class. so we're you wise choice.don't hesitate to contact us . contact person: ms. liang xiaofei(sales manager) helen(at)rs-abrasive.com