Business Photo byOlaf Business FreePhoto byOlaf Free Download ▾ 5349 x3566 3840 x 2560 2560 x 1707 1920 x 1280 1280 x 853 800 x 533 5349 x3566 3840 x 2560 2560 x 1707 1920 x 1280 1280 x 853 800 x 533 License: Free for personal and commercial use. Not for sale or redistribution. Appreciation not required but appreciated. Facebook Twitter Camera: Canon EOS 550D 17/1 mm f/8.0 1/250 s 200 ISO plant business sky smoke technology metal equipment power machine industrial heavy production pipe outdoors industry steel rusty factory iron machinery natural gas Colors: