Encyclopedia
Lead
Lead is a heavy bluish-gray metal characterized by high malleability, low melting point, and softness (a mark remains on it from light pressure of a fingernail). It exhibits resistance to the action of most acids (e.g., sulfuric or hydrochloric) and therefore is used in equipment for chemical enterprises
Source: "Explanations to the Harmonized System of Foreign Economic Activity of the Russian Federation (HS of Russia)" (prepared by the Customs Committee of Russia) (volume 3, sections XII - XVI, groups 64 - 84)