Answer:
The answer is: "Key in hand" or "Turnkey contract".
Step-by-step explanation:
These are the names that receive the type of projects in which the builder assumes the execution of the work as a whole, from the phase of basic engineering, detail, management of purchases and subcontracts, purchase of materials and equipment to the supervision of the Work and setup. The client receives the facility ready to be used, just as when you buy a new car and you receive the key to take it out from the dealership.
