Kataka kupro estas speco de neferra metalo, kiu estas proksime rilata al homoj. Vaste uzata en elektra potenco, malpeza industrio, fabrikado de maŝinaro, konstrua industrio, nacia defenda industrio kaj aliaj kampoj. Used for winding resistance of various cables, wires, motors, transformers, switches, printed circuit boards. Manufacturing industrial valves and accessories, instrumentation, sliding bearings, molds, heat exchangers and pumps.Also makes vacuum, distillation tank, brewing tank and so on.It is also used in the defense industry to make bullets, shells, gun parts, etc.