Symbol library illustrate

[Matteo_1987]

Soon I will use the software, as well as for the preparation of spare parts tables, also for the preparation of assembly operating instructions.
To do this, I will need to insert instruments / signals / consumables etc ...

The question is:
Are there any sites that can be downloaded? If so, how can I categorize them?

PTC provide any packages for sale? (even only of a single sector instruments / signals / consumables / etc ...)

Thanks

Matteo

[VladimirN · Accepted solution]

"About the Symbol Library": https://support.ptc.com/help/creo/illustrate/r7.1/en/index.html#page/creo_illustrate%2Fvisualization%2Fcreo_illustrate%2Fgxy1215.html%23

"3D symbols in Illustrate": https://community.ptc.com/t5/Addtl-Creo-Products-View-Sketch/3-D-symbols-in-Illustrate/td-p/351232

"How to create an ".ol" file?": https://community.ptc.com/t5/Addtl-Creo-Products-View-Sketch/How-to-create-an-quot-ol-quot-file/td-p/252591

On GrabCAD site you can find a many of CAD files: https://grabcad.com/library