Okay - but hazardous things are produced to precision every day by manufacturers. Given the price you state, I can only imagine that there have been few companies willing to invest the capital required to make these things at that price and volume. My understanding was the burned plant was very old and likely operated with fully depreciated equipment. This is not exactly some newfangled technology here.First you start with a machined aluminum disk built to some specific dimensions. Then it has to be coated with some precision with the very flammable lacquer from which it gets its name. Now do it for only $35-$40 each in quantities of one. It should tell you something that the plant making them in the US burned to the ground; lacquer burns quite fiercely. I imagine (without any real proof) that getting a permit or the like to build or renovate a place to do this sort of thing might be a trick in many states.