Piping (Bend)
A 90 degree bend in a pipe run.
It is one of the four shapes that take part in over-pressure failure: the weakest plain pipe on a run, this one included, sets the burst rating for the whole thing, 5 atm for iron and 10 for steel, so one iron bend in an otherwise steel line caps it.
A wrench cycles only the orientations valid in the cell it sits in. Where only one is valid it will not turn at all: break it, place the neighbour that decides its shape, and place it again.

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topMade by
| any Hammer (tool, not consumed) | |
| Nails and strips (Iron or Steel) | Plate (Iron or Steel) |
| Nails and strips (Iron or Steel) | |
| Piping (Bend) | |
Needs: 1 Plate (Iron or Steel), 2 Nails and strips (Iron or Steel), a Hammer (kept); makes 1 Piping (Bend)
Amounts are the mod's defaults; the recipe-cost level changes them (see Commands and config).