Tungsten sheets 1 Purity :>=99.95% 2 Materials:tungsten 3 Surface ... produce hot-rolling and cold-rolling products with high quality W slabs, such as W electrode plate, heater ... rolled, drawn Tungsten Sheet, Tungsten Plate 2 Purity :>=99.95% 3 Grade :W1 WAl1, W61, etc Thickness( ... componentsfor producing heating elements and refractors in high temperature furnacesfor producing W-boats, and heating units ...