Brass patented a technique for the first industrial scale distillation of metallic zinc known as "distillation per descencum" or "the English process." This local zinc was used in speltering and allowed greater control over the zinc content of brass and the production of high-zinc copper alloys which would have been difficult or impossible to produce using cementation, for use in expensive objects such as scientific instruments, clocks, brass buttons and costume jewellery. However Champion continued to use the cheaper calamine cementation method to produce lower-zinc brass and the archaeological remains of bee-hive shaped cementation furnaces have been identified at his works
Rolled Alloys Rolled Alloys Rolled Alloys is a private company headquartered in Temperance, Michigan, in the United States. Rolled Alloys is a supplier in the metal industry for both heat resistant and corrosion resistant alloys. The company has between 201-500 employees throughout the world. Rolled Alloys' key markets are Aerospace, Chemical Processing, Medical, Oil and Gas, Power Generation, and Thermal Processing. Rolled Alloys Canada also deals in the Pulp / Paper and Mining markets. Rolled Alloys has expanded through acquisitions of other companies: Harvey Titanium, Weaver Steel, Super Alloys, SMS London, Clasma Trade, and RA® Materials (formerly Weir Materials and Foundry). Rolled