... of stomatal pore-like, no bubbles and other defects Product Application: Fused Silica Rollers can used in glass tempered furnace, floating method glass ... antenna cover, widely used in spacecraft, rocket, missile, radar, Atomic Energy, electronic, steel, coking, non-ferrous metals, Glass and other industrial applications. ... conductivity(W/m.k)0.60.6 Silica Rollers used in glass furnace and kilns