Coal ingot and Zinc Ingot do not exist, thus of course it'd never be made, though, It's really not supposed to show coal ingots at all.
As for steel alloy - if there's ever an issue with it not displaying, try removing the ore and putting it back in, and/or moving the smelter, as the detector might have gotten blocked by something (unlikely)
If those don't work, go for a save reload rather than trying anything else, but first, remove the ore that you can, then do the reload.