The industrial and commercial sectors include mainly industrial plants, research and educational institutions. Establishing a closer co-operation with them can be realised at two levels. At the local level, the centres working with aids for patients with renal impairment can be contacted; these aids have been developed by scientists or technicians. In particular, these are the dialysis centres that work with artificial kidney. Further, it is possible to organize a study visit to waterworks or bottling plants of water or Coca-Cola; the latter enjoys a great popularity among students. The following level is to establish contacts with research institutes and plants that are mainly engaged in the development and production of dialysers as the most important part of the artificial kidney. Another option for establishing cooperation with various plants is to invite the person who works in this area to the class, or at least to make an e-mail contact.

Some important websites: