Many times we need raw materials that take a long time to produce, and that are somewhat difficult to find in the market depending on the day.
In these cases, the best thing to do is to accelerate the production of the factory you are interested in by viewing the advertising.
To work, this trick should not be done often, since the advertising is only shown when it is available. The game does not usually give advertising 2 times in a row.
The steps are as follows: