If you are looking for a bulk order of magnetic strips that are suitable for the industrial applications you have in mind, there are several different criteria to articulate to yourself before you make a decision as to vendors and materials. First, ask yourself what these magnetic strips are going to be intended for use with, and then determine how thick or thin the magnetic strips in question will need to be in order to fit the products you have in mind.
From there, ask yourself how strong these magnetic strips are going to need to be, and how much weight one of these magnetic strips are going to need to be able to hold at any given period of time. You can take this opportunity to research different magnetic materials that would be well suited to your purposes, and then look for magnetic strips that are made of your preferred substances. When you know how strong and how thick you need your magnetic strips to be, ask yourself how many you will need at a given time, and how much you can afford to pay for your purchase when shipping, etc. is included in the price.
At this point, search the web for magnetic strips, as well as a keyword or two describing what you are looking for overall. Look through the results that you find, and narrow your list of possibilities down to the bulk providers of magnetic strips that seem well suited to your needs. Determine how much the magnetic strips from each vendor might cost, including shipping fees, and then determine which of these options is the most cost-effective. Place your order once you have concluded this phase of your research, and your magnetic strips should hopefully arrive on time, proving to be everything you needed and more!