Vulcan is the closest Roman equivalent of the Greek craftsman Hephaestus.
In the Pandora story, Hephaestus is the divine artisan who shapes Pandora at Zeus's command. Roman mythology identifies the corresponding god of fire, metalworking, forges, and craftsmanship as Vulcan, also called Vulcanus. This is a cross-cultural identification rather than a detail in Hesiod's original Greek narrative.
Greek and Roman gods are often paired in reference works, but they are not always exact copies. Hephaestus and Vulcan share major functions as smiths and fire-associated craftsmen, yet their myths developed in different cultural settings. Greek mythology places Hephaestus among the Olympians and gives him a prominent role in making divine objects.
This comparison can help readers recognize the same mythological function in Roman retellings. It does not mean that Pandora was originally created by Vulcan: the earliest famous literary account is Greek and names Hephaestus. Vulcan is the Roman counterpart used when the story is discussed through Roman mythology.