What is "pipeworks"

Usage examples of "pipeworks".

In a basement level of the complex, beneath pipeworks and supporting structures, where the primary energy converters loomed several hundred feet overhead, they opened a concealed door into a further shaft that gave no outward sign of existing, and which didn't appear in any of the official plans or construction records.

In a basement level of the complex, beneath pipeworks and supporting structures, where the primary energy converters loomed several hun­.