... mouth, plug bar, flow slot, crucible, coke oven door, glass industrial raw materials Bowl, uniform material tube, mixing bar, material basin ... Energy, electronic, steel, coking, non-ferrous metals, Glass and other industrial applications. We can made the fused silica rollers according to ... .6<0.6Thermal conductivity(W/m.k)0.60.6 SUN WOOL SY type fused silica roller