Metal (or their alloys) with relatively low melting points. Such metals include zinc, cadmium, tin, antimony (here counted as a metal), lead, and bismuth, some of which are quite toxic. In Britain, the fine art trade uses the term "white metal" in auction catalogues to describe foreign silver items which do not carry British Assay Office marks, but which are nonetheless understood to be silver and are priced accordingly. A heavy metal is any relatively dense metal or metalloid. More specific definitions have been proposed, but none have obtained widespread acceptance. Some heavy metals have niche uses, or are notably toxic;
American Brass Company and the company name changed to the Wolcottville Brass Company. The company now began to produce mostly rolled and sheet brass. Anson Phelps purchased a large parcel of land at what is now Ansonia, Connecticut, in 1844. He founded the town of Ansonia, and built a dam across the Naugatuck River. He also built a canal and water reservoirs, and established a copper rolling mill. Phelps named the new company the Ansonia Brass and Battery Company ("battery" being the term then in use for hammering sheets of metal into kettles). Phelps later added a brass mill and a brass wire