dehghani farzabadi, and also his deputy in it was true that in order to be able to give an upgrade in the field of entry of knowledge bases to the transfer of knowledge, the first step of this modification of the list of goods and services of the scholars is to have a 90-page list, and now if we take an average , each of them will have, for example, 20 titles. there are about 1,800 to 200 names of products or goods there is a variety of basic knowledge, but a small part of it is unfortunately related to the railway sector , which means that the railway sector has been marginalized and oppressed in the past years . and it is intended that, firstly, this knowledge should be developed in the field of product list. the second issue is that in order to do this work in parallel, we need to use domestic companies. for domestication , we needed more than 6 thousand parts in the rail field , alhamdulillah for the support of the companies internally, we are now making more than 3 thousand parts internally and we are moving in this direction until we can become self-sufficient in the internal fi