Modern Spanish shipyards sent into an earlier industrial world

What would happen if Spain gained its modern naval infrastructure in the past, described inconsistently as 1936 and the Victorian age?

It would cause alarm but not create a self-sufficient modern navy, because engines, electronics, metallurgy, and supply chains remain missing.

Modern Spanish yards could build hulls, but much of the machinery and equipment they require would come from industries absent in an earlier century. General Electric engines, German diesels, and electronics from Thales or American manufacturers illustrate the dependence on foreign suppliers. Even transferring Spain's domestic industry would leave those overseas capabilities missing. Modern welding machinery is designed for specialized steels, so it would also need metallurgy unavailable locally in the scenario. The same equipment would not automatically suit older iron or wooden warships. The question is introduced as 1936 while referring to the Victorian age, and the later answer says 1836, leaving the intended date inconsistent.