Мужчина наклонился над колодцем и записывает показания счетчика воды. Проверка и ремонт счетчика.

Открытый люк без крышки

Установка трубопроводов

Водопроводные трубы

Рабочий дорожного строительства прокладывает новую канализационную трубу

Очистные сооружения

Канализационная труба

Утечка воды в трубе

Сухие водопроводные трубы

Трубы большого диаметра

Обслуживание канализации, вид вниз в люк 2

Артезианская скважина с водой на дне

Сварка в туннельной трубе

Строительство туннеля из бетона

Открытый незащищенный люк канализации

Начинаются раскопки

Подземная шахта

Обслуживание работников подземных трубопроводов

Колодец в Касбе

Подготовка резервуара для очистки сточных вод в земле

Дыра

Мужчина работает над цементной стеной с мастерком

Бетонные канализационные трубы

Водосброс легендарной плотины Гувера

Фундамент

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