Opróżnianie asfalt lity z maszyn budowlanych - Materiał filmowy & wideo

Production of concrete at a construction site. The builder manually mixes the concrete mortar

Biological purification of water sewage treatment plant waste water bubbles in the tank, activated sludge industrial wastewaters process using aeration and biology floc composed protozoa and bacteria

Tension of rope with knot on a sandy beach near the sea

Summer rain in the courtyard of a village house

Ice skating on a frozen lake with old skates in winter

Ice skating on a frozen lake with old skates in winter

Man thinking whether to jump into the stormy river on the edge of the bridge.

Leakage dirty water from the pond with dirty foam and throwing stones into the water

Small fish in the lake swim from right to left

Common Frog in the river hid under the sheets