Zhengzhou Sunrise Technology Co., Ltd. Our main products are as follows: fused cast AZS 1681, fused cast AZS ER 1685, fused cast AZS 1711, fused cast alumina,glass furnace fireclay bottom blocks, mullite bricks, zircon bricks, Alumina bubble bricks, sillimanite bricks, corundum bricks, low porosity fireclay bricks, high alumina bricks, fireclay insulation bricks, mullite insulation bricks,all kinds ramming masses, castable material,sealing materials, building fireclay,...