Sand casting greater cost. With a completed mold at the appropriate moisture content, the box containing the sand mold is then positioned for filling with molten metal—typically iron, steel, bronze, brass, aluminium, magnesium alloys, or various pot metal alloys, which often include lead, tin, and zinc. After being filled with liquid metal the box is set aside until the metal is sufficiently cool to be strong. The sand is then removed, revealing a rough casting that, in the case of iron or steel, may still be glowing red. In the case of metals that are significantly heavier than the casting sand, such
Industrial metal Hard Rock Video), and Marilyn Manson's output with Richard Kern and Floria Sigismondi. NIN later collaborated with Bill Viola for live accompaniment. Trent Reznor also produced the soundtracks for the films "Natural Born Killers" and "Lost Highway", and served as "musical consultant" for "Man on Fire". Rob Zombie has directed three films. As of 2009, Marilyn Manson is in the process of directing "". Other films that have included prominent contributions from industrial metal artists include "The Crow", "Johnny Mnemonic", "Spawn", "The Matrix", "Blair Witch" and "A.I. Artificial Intelligence". Its emphasis on transgressive themes has made a few industrial metal