The Dash Cam Mounts - Elastomers and Adhesives

I could be wrong you know.... about the interlocking EVA floor mats.
I had a thought later that perhaps the part cured rubber could be going between two rolls, one of which forms the "tread plate" texture on it, and because this material might be difficult to pull into the gap between to POLISHED rolls, that the second roll, might have been surface hardened - to a high hardness, and lightly sand blasted with a very fine sharp grit - making the surface like 1200 wet and dry sanding paper...

After the sheet comes out the rolls, it's cut up in it's interlocking jigsaw pattern with a hydrojet (water) cutter..

Just a thought.....