Copper, aluminum, lead, nickel, and tin.
Barry Goldsmith
| APA | Barry Goldsmith. (2010). base metal. Retrieved September 23, 2026, from http://smartdefine.org/base_metal/definitions/1148426 |
| Chicago | Barry Goldsmith. 2010. "base metal" http://smartdefine.org/base_metal/definitions/1148426 (accessed September 23, 2026). |
| Harvard | Barry Goldsmith 2010, base metal, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/base_metal/definitions/1148426>. |
| MLA | Barry Goldsmith. "base metal" 21 October 2010. Web. 23 September 2026. <http://smartdefine.org/base_metal/definitions/1148426> |