Kruszywa Zawada Sp. z o. o Main Menu About company Price list Drive contact About us Zwirownia is located in Zawada near Opole, Opolskie Voivodeship. We have been on the market since 1990. All this time, we use the material we sort, which results in high-quality gravel and washed sand of various dimensions, used for construction and renovation purposes. We sincerely invite you to use our services and build with us. Login User Password remember Login Up © Kruszywa Zawada Sp. z o. o. 2015