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
Industrial metal repudiate the industrial label. Sales remained high throughout 2000–2005; at least 10 million records were sold during that time frame. Many groups began to take influence from hip hop and electronic music, in addition to industrial metal. As a result, acts like Powerman 5000 are often described as industrial metal as well as nu metal. Several industrial metal groups have produced eye-catching videos. These include Godflesh's collaboration with Andres Serrano, Aidan Hughes's graphics for KMFDM, Nine Inch Nails' work with Mark Romanek, Rob Zombie's visual work for White Zombie (for which he received the MTV Video Music Award for Best