As a subsidiary corporation of Zhengzhou Guangda refractory material co.,ltd We specialize in Industrial Furnace service (overall project contracting and refractory supply for Blast furnace/hot stove/ pellet shaft Furnace/ lime Kiln/Mix Iron Furnace/Submerged Arc Furnace /Roasting Furnace ) Refractory production.(Andalusite brick,cordierite mullite,corundum mullite brick,high alumina brick,clay brick,combined brick,7/9/37 holes Checker brick and castable series, Ceramic fire-resistant bal...