specialist technician worker wearing protective gloves is welding a pipe at a construction site, workers wearing industrial uniforms and welded iron mask at steel welding plants - 硬管 個影片檔及 b 捲影像00:11
engineers or technicians working extensive metal piping, hvac systems, industrial equipment suggesting a controlled, well-maintained environment concept. - 硬管 個影片檔及 b 捲影像00:13
engineers wearing safety gear, including hard hats examining survey a standing industrial facility gas or oil refinery engaged in a job requires high safety standards concept. - 硬管 個影片檔及 b 捲影像00:16
water treatment plant operators sampling measure analyze water from water treatement tank, industrial infrastructure - 硬管 個影片檔及 b 捲影像00:10
a construction worker wearing a safety vest and hard hat checks a large drainage pipe at a construction site. - 硬管 個影片檔及 b 捲影像00:17
workers at a workshop site are welding steel to create pieces in an industrial factory, precast concrete wall factory. - 硬管 個影片檔及 b 捲影像00:09
cu slo mo shot of cross section of water as it gushes down pipe / united kingdom - 硬管 個影片檔及 b 捲影像00:17
construction site of undersea tunnel / dangjin-si, chungcheongnam-do, south korea - 硬管 個影片檔及 b 捲影像00:13水管
metal valve on a pipe system with water leaking under high pressure causing splashing - 硬管 個影片檔及 b 捲影像00:40
hand held close-up view of a man in his early thirties inscpecting a water heater inside an unfinished basement - 硬管 個影片檔及 b 捲影像00:13
while touring the interior of the heating plant, the workers stopped at the control display and talked about something. - 硬管 個影片檔及 b 捲影像00:09
the main gas pipeline nord stream two between germany and russia. 3d render animation - 硬管 個影片檔及 b 捲影像00:16
a burst water main sprays high pressure water violently in multiple directions - 硬管 個影片檔及 b 捲影像00:12垃圾
a burst water main sprays high pressure water violently in multiple directions - 硬管 個影片檔及 b 捲影像00:11爆炸
