This is the 15947th most frequent Polish word.
towarowych
"Towarowych" means "goods" or "freight" (adjective form, e.g., related to goods or cargo).
In this sentence, 'towarowych' modifies 'materii', indicating that the materials in these trucks are goods or commodities for business purposes.
Na teren fabryki wjechały dwie ciężarówki towarowych materii.
Two trucks carrying merchandise materials entered the factory premises.
Here, 'towarowych' describes 'zaopatrzeń', referring to the supplies that consist of merchandise intended to aid or be used by the local community.
Organizacja prowadzi odbiór towarowych zaopatrzeń dla lokalnej społeczności.
The organization handles the reception of merchandise supplies for the local community.
The word 'towarowych' is used here as an adjective describing 'products', implying that these crates contain items intended for trade or commerce.