I see.. tested with both bob's vehicle equipment and personal equipment mods enabled, and they do appear to be uncrecyclable... I'm not entirely sure why... gonna test with previous versions and see if it was my most recent update that changed this.
EDIT: Yup, switching back to 8.1.0 and they are recyclable again. These items might formatted differently than the vanilla items, or at least, when equipments are enabled, or maybe a mistake in my checks. I would suggest sticking with 8.1.0 until I have time to debug this (shouldn't take more than a couple of days, but currently busy with things)