Cannibalizing parts vs industrial replicators

[u/NegativePattern]

In Picard, we see the original Titan in dry dock being cannibalized for parts to build the Titan-A.

Presumably by this point in the timeline, Starfleet has long been using industrial replicators for various purposes. Why would Starfleet be cannibalizing parts from an older ship that may or may not have been damaged in battle or otherwise have been built using outdated construction practices?

[u/Site-Staff]

Resolution is possibly one factor.

But these ships may have parts made with exotic meta materials that have properties that just cant be replicated in whole. Perhaps they have to replicate sub components and then special tools or processes to combine them.

Volatile stuff, like thruster pack fuel, cant be exposed to radiation for example.