I have barely any idea about metallurgy but I wonder; if I were to buy two velocity or plume veil rda's from tobeco, could I have one tested for the content. They often state on various websites that the ss is 304 grade. Can that be the case for an rda which retails for £120 and the clones are sold for £10-20. If it is possible to have your metal tested. How would I go about that. I live in the UK. Any idea how much? I just want something cheap and safe. £120 is too much to forget about and leave on the bus. Cheers guys