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# Engineering Rigs

Permanent modification of a ship's energy grid facilities.

| Child market group |
| --- |
| [Capital Engineering Rigs](/market/1724-capital-engineering-rigs) |
| [Large Engineering Rigs](/market/1254-large-engineering-rigs) |
| [Medium Engineering Rigs](/market/1253-medium-engineering-rigs) |
| [Small Engineering Rigs](/market/1252-small-engineering-rigs) |