A copper square bar is a type of metal bar made from copper that has a square cross-section. It’s commonly used in various industrial applications such as electrical wiring, plumbing, construction, and as a raw material for manufacturing components in electronics, machinery, and architecture. The square shape provides stability and structural support, making it suitable for situations where strength and durability are required. Copper is favored for its excellent conductivity, corrosion resistance, and malleability, making it a versatile material in many fields.