Brass Late Roman. Latten is a term for decorative borders and similar objects cut from sheet metal, whether of brass or bronze. Aquamaniles were typically made in brass in both the European and Islamic worlds. The cementation process continued to be used but literary sources from both Europe and the Islamic world seem to describe variants of a higher temperature liquid process which took place in open-topped crucibles. Islamic cementation seems to have used zinc oxide known as "tutiya" or tutty rather than zinc ores for brass-making, resulting in a metal with lower iron impurities. A number of Islamic writers and
Industrial metal Industrial metal Industrial metal (also known as industro-metal, industrial–metal, metallic industrial, cyber-metal etc.) is the fusion of heavy metal music and industrial music, typically employing repeating metal guitar riffs, sampling, synthesizer or sequencer lines, and distorted vocals. Prominent industrial metal acts include Ministry, Godflesh, KMFDM and Nine Inch Nails. Industrial metal developed in the late 1980s, as industrial and metal began to fuse into a common genre. In the early years of the 21st century, groups from the black metal scene began to incorporate elements of industrial music. Industrial metal did well in the early 1990s, particularly in North America,