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Main Article: Maintenance
Maintenance II is required by Arc Furnace II, Assembly (Robotic), Boiler (Electric), Household Appliances Module, Microchip Machine, Microchip Machine II, Research Lab V, Silicon Crystallizer, Solar Panel, and Solar Panel (Mono).
Below are all the recipes, which contain this item. Note, that some of them may be locked behind Research, and not immediately available in your game.