"折叠式印刷品" can be translated into English as "folded printed material" or "folded print".
"Folded printed material" clearly describes the nature of the item (printed) and its form (folded).
"Folded print" is a more concise option, often used in contexts where the type of printed material is understood or implied.
Both expressions are accurate, and the choice between them may depend on the specific context or the level of formality required.