Who built the Radetzky class's 9.4-inch guns?

Who built the 9.4-inch guns for the Radetzky-class battleships?

Probably Škoda, based on its role in designing or organizing most of the class's armament, but the identification is tentative.

Škoda probably built the 9.4-inch guns carried by the Radetzky class, since the firm designed or organized the construction of almost every gun associated with the ships. The identification rests on memory rather than documentary confirmation, so it remains a research lead rather than a settled attribution.