it is a drawing of the apartment (housing) project with reinforced concrete structure details. You can download the dwg file to have reinforced concrete details.
You can download the Reinforced Concrete Structure Project Dwg file from this page and use it in your autocad projects. All users can share and download files on Arkipedia. You need to wait for a while to download the file. If the file is not free, you can support it by checking out the subscription plans.