To fight back, some utility companies are making power stations more physically secure, while others are choosing to use Copperweld wiring instead. This bimetallic electrical conductor, which has a steel core and copper on the outside, is made by Fushi Copperweld Inc., a Sino-American public company based in Beijing. Copperweld costs more, but doesn't have the same scrap value as regular copper wire, so companies hope its use will cut back on thefts.