Workers welding on the flood gates workers welding on the flood gates at the base of the empty vidraru dam on a winter day 库存照片 workers welding on the flood gates workers welding on the flood gates at the base of the empty vidraru dam on a winter day
Equipment to open and close flood gates on backside of dam spillway concrete with cables pulleys gears motors 免版税库存图片 equipment to open and close flood gates on backside of dam spillway concrete with cables pulleys gears motors