We battle with this all the time. Fine line between showing your products in all their glory vs people stealing your artwork. We draw everything from scratch and have the images of the finished products available on our website in good resolution images purely because this sells our business.
We have had countless companies steal out designs. Mostly on places like Alibaba but have had Western companies based in the US do so to. A quick email with a ceast and decist usually does the trick. Ultimately, I take it as a compliment that my artwork is good enough to steal. There isn't much you can do about it really unless you want to get into length and costly legal battles. For example, I watched a TV show about copyright infringement and that featured Dyson (the vacuum company). A billion pound company has literally thousands and thousands of pending law-suits regarding this, but even they do not get very far. If they can't do it, most of us have no chance. But as mentioned before, most people who plagiarise are small companies/individuals who will pee themselves with a threat of legal action.
Jit Patel
London UK
30w Trotec Speedmarker CL (Galvo) with 400mm & 250mm lens
80w Trotec Speedy 400 with Rotary, Vacuum Table, Cutting Lamellas, 2" & 1.5" lens, Pass through
Oki Printing Press
Abobe Creative Suite - Illustrator, Photoshop, InDesign.
Vector Magic