What are precast concrete?

Concrete prefabricates are, as is already apparent from the title, factory concrete products. Usually they can be used instantly, but they do not pay 100% for each case. Stoves or paving tiles can be used practically as soon as they leave the production strip, but for example, prefabricated concrete garages need to be retrofitted with other elements such as doors, roof or wiring. Without these add-ons, it is only a concrete block, which can perform its function only in a limited way.