three heavy industry engineers stand in pipe manufacturing factory, use digital tablet computer in industry manufacturing factory. - gas pipe 個影片檔及 b 捲影像00:12
while touring the interior of the heating plant, the workers stopped at the control display and talked about something. - gas pipe 個影片檔及 b 捲影像00:09
medium shot three male workers assembling gas pipeline at industrial site / bakersfield, california - gas pipe 個影片檔及 b 捲影像00:08
smoke coming out of the pipes. petrochemical and power plant gas industry . - gas pipe 個影片檔及 b 捲影像00:13
caucasians or middle east engineer checking and work discussion at oil refinery at night time. - gas pipe 個影片檔及 b 捲影像00:14
cable underground during works electrical gas and telecommunications cables and water pipes on the street - gas pipe 個影片檔及 b 捲影像00:09
natural gas pipeline installation and construction site - drone point of view stock video - gas pipe 個影片檔及 b 捲影像00:09