PW Steel is a huge supplier that is out of Houston, TX and they have extensive experience in steel products such as perforated metal. They have products that are for construction, agriculture, mining, marine industries, petrochemical as well as architectural to just name a few PWS is also the main source for things such as expanded metal, fiberglass grating and steel wire cloth to just name a very few. They have a great site that has a lot of information so if you think that this is something that you could benefit from then check them out.