Precast walls are concrete panels that are manufactured in a factory setting before being transported to a construction site. These walls are created using molds, allowing for precise dimensions and a variety of finishes. They can be used for both structural and non-structural purposes, providing strength and durability to buildings. Once on-site, precast walls are quickly assembled, reducing construction time and labor costs. They are often used in commercial buildings, residential homes, and industrial facilities. Additionally, precast walls can improve energy efficiency and provide better insulation compared to traditional building methods.