sump pit crash inspection. unrecognizable insurance claim agent's hands with flashlight inspect sump pit pipes, looking for damage - 下水溝 個照片及圖片檔檢查, 土庫, 水泵
manhole cover open in street and repair of roads. accident with sewer hatch in city - 下水溝 個照片及圖片檔排水, 服務, 街道
a female engineer used a measuring instrument to measure the quality of steel pipe - 下水溝 個照片及圖片檔建築地盤, 建築業
two male structural experts inspect large drainage pipes while carrying a toolbox and a blueprint before sending it to pre-construction for the next process. - 下水溝 個照片及圖片檔建築地盤, 建築業, 排水
powerful water flowing from a large pipe using a water pump for agricultural use in paddy fields. - 下水溝 個照片及圖片檔水質污染, 污染
a construction worker wearing a safety harness and hard hat with toolbox checks a large drainage pipe at a construction site. - 下水溝 個照片及圖片檔建築地盤, 風險, 地底下
