Utility sectors have long relied on quality lead products for tasks such as transporting wastewater, and protecting underground electrical cables and electrostatic precipitation systems. Given the diverse sectors within the utility industry, these lead tubes must be customizable for a multitude of unique needs. Bar solder must also be manufactured with precise variation in composition for differing projects. Lead and tin are common choice metals, due to their optimal balance of a low melting point and malleability, in either pure bars or in a spectrum of alloy compositions. Lead is also used to thread pole-line hardware preventing the potential cracking of insulators when they are installed.