If you are looking for bulk providers of magnetic sheeting, there are several different things to consider prior to making a purchase. First of all, what exactly is it that you want your magnetic sheeting materials to do for you? How many pounds per square inch will your magnetic sheeting materials need to hold, and how large or small must the dimensions of your chosen magnetic sheeting materials be in order to effectively carry out the purpose you have in mind. At this point, ask yourself if there are any specific magnetic sheeting materials that may or may not be particularly suitable for your given application for any reason, and then adjust your list of parameters accordingly.
Once you have sketched out exactly what you need from magnetic sheeting providers in general, ask yourself how much you can afford to pay per shipment, and how many units of magnetic sheeting material of certain dimensions you might need in order to adequately handle the jobs you have in mind over a certain period of time. Once you know what you can afford and what you need from your magnetic sheeting provider of choice, start searching for providers in earnest!
From here, search the web for magnetic sheeting, as well as a few keywords that describe what you are looking for. Look at the various magnetic sheeting products that are out there right now once your results come back, and then start narrowing down the options accordingly. Once you have a list of magnetic sheeting materials and providers thereof that seem to be what you are looking for, compare the prices and shipping costs of each possibility carefully, and then choose the best overall magnetic sheeting purchase for your particular application! Hopefully, your research should pay off nicely, and your magnetic sheeting of choice turns out to be perfect!