Your browser isn’t supported anymore. Update it to have the ideal YouTube encounter and our most current functions. Find out more Some specialty incandescent lamps including halogen lamps nonetheless use tungsten filaments, and superior-intensity arc lamps hire tungsten electrodes. With the correct proportions of tungsten and copper, a copper-tungsten warmth https://edgetechindustrieseti21087.blogunok.com/28541280/the-basic-principles-of-edgetech-industries-eti