In principle, everything that comes out of the printing house can be included in the category of printing. There are plants specializing in the production of only a specific group of printed materials: eg leaflets, or only large-format printing.However, this results from a simple thing: for every type of printing you need to have the right machine, and these take up space and cost a lot.
That is why printing plants limit the amount of services provided.
Good prices for printer inks mean that people who can not afford them can afford rebate actions and introduce various promotions, because they are able to reasonably lower the costs of carrying out orders.
Imagine that we buy a monitor and its input does not match our video card, even though it has the same type.
That's why certain standards apply. In polygraphy and graphics, such standards also exist - appropriate definitions of CMYK colors - key for the appropriate color reproduction.
Specified in advance formats for printing leaflets and business cards, so that they are comfortable and as uniform as possible.