Tungsten has the highest melting position from the refractory metals, significant density, and low coefficient of thermal growth. It provides extremely higher energy and superior electrical resistivity at extremely substantial temperatures. Some specialty incandescent lamps like halogen lamps even now use tungsten filaments, and high-intensity arc lamps utilize tungsten electrodes. https://edgetech-industries-eti21986.wssblogs.com/28365266/considerations-to-know-about-edgetech-industries-eti