They have 2D pictures, and they have physical objects. Occasionally there is a CAD. Creating 3D objects of the products is a hurdle companies must overcome, but their options are not great. Scanning?

A Smart IoT Enabled End-to-End 3D Object Detection System for Autonomous Vehicles. IEEE Transactions on Intelligent Transportation Systems, 2022; 1 DOI: 10.1109/TITS.2022.3210490 ...