This is what I found...
https://gyazo.com/3328a5a91d3571c2a723b1f32ce724b5
https://gyazo.com/7616a50d1b3e06e28e28e2e98aaac2ec
Too much scrap metal
(Seriously though, after killing all those retrodes and menders, I'd expect them to drop something other than scrap metal. Well, this IS only stratum 1, so they have a small drop table...)
You have no idea.....
BTW to trade or sell materials by 10s just hold the shift key while clicking.....