Excellent mod, thank you for making it. I'm using it along with a recycling mod (https://mods.factorio.com/mod/apm_recycling) and I can't set up a request depot to request the scrap that the recycling mod adds to some production chains. No scrap metal boxes show up as requestable. Oh, and while I'm here, have you considered optional integration with https://mods.factorio.com/mod/AsphaltRoads?

Can you provide a save game with the scrap and everything set up and all the mods installed?
It is easier to sync to the exact mod configuration

With asphalt roads, integration is not really beneficial, as the roads in that mod are just decorative, but my roads have some very specific collision masks

Thanks for looking. Here's a savegame with three requester depots nearby, and a bunch of scrap in a wooden box. I'd love those three depots to request the three types of scrap in the box: https://gofile.io/?c=9GbVM3

Is it only the 3 types of scrap? I think I have it fixed:

Yes as far as I'm aware that screenshot looks perfect!

You're the greatest there ever was, thank you!