Details of the internal and external AutoCAD interfaces Dwg

As part of the presentation of a set of distinguished projects and ready-made drawings prepared in advance for a use that saves you a lot of time and effort during their use, we propose you to about a number of details and blocks for AutoCAD.
If you're having trouble finding AutoCAD blocks, here's this good free group that came with the intention of taking advantage of it and putting it into your project designs.