The category is Copper: Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewellery, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement.
Parent categories: Metallurgy, Plastics, Rubber, Chemicals & Energies
Related categories: Commercial, Home, Lights, Construction Accessories & Materials