Some recipes use `bob-nickel-plate`

[KompetenzAirbag]

bob-nickel-plate is removed

Recipes:

• Heat Pipe 2
• Boiler 3
• Heat Exchanger 2
• Fluid Burning Boiler 2
• Burner Heat Source 2
• Fluid Burning Heat Source 2

This is not shown in Factoriopedia for some reason.

[KiwiHawk]

Probably also worth checking Zinc and Gunmetal plates

[KiwiHawk]

The items are hidden so Factoriopedia doesn't show them as recipe ingredients

[HourGlss]

Thanks for the report. I opened a focused PR against the SeaBlock dev branch for this specific hidden-material class:

KompetenzAirbag#74

What the PR changes:

• Adds bob-nickel-plate, bob-zinc-plate, and bob-gunmetal-alloy to SeaBlock's existing unobtainable-item handling.
• That lets the existing replacement path clean up Bob's Mods dev recipes that still reference materials SeaBlock hides.

Methodology:

• I started from this issue, then checked the current Bob's Mods dev data for the same kind of hidden-material recipe leak.
• I kept the PR scoped to nickel/zinc/gunmetal so it can be reviewed independently from the Bob carbon/tungsten rename cleanup and from unrelated tech/tip fixes.
• The change intentionally uses SeaBlock's existing cleanup mechanism instead of adding a broad compatibility shim.

Validation:

• The branch was included in a local aggregate validation stack that passed Factorio headless map creation with Quality and Elevated Rails enabled.
• Smoke coverage included minimal SeaBlock, Bob Power, and Bob Enemies + Bob Greenhouse loadouts.

[HourGlss]

Correction/update: the PR for this issue is now rebuilt from the correct SeaBlock target branch and retargeted to 2.0-logic-changes: KompetenzAirbag#74

I also changed the implementation after review. Instead of a broad recipe-wide replacement for nickel/zinc/gunmetal, the PR now directly substitutes hidden bob-nickel-plate in the Bob Power recipes named here, plus the same current Bob Power hidden-nickel recipe family. Zinc and gunmetal were checked against current Bob/Angel dev references, but I did not include a broad replacement for them.