professional technician installing manifold wall cabinet of the floor heating system - 採暖工程師 個影片檔及 b 捲影像00:24
professional technician installing manifold wall cabinet of the floor heating system - 採暖工程師 個影片檔及 b 捲影像00:22
professional technician installing manifold wall cabinet of the floor heating system - 採暖工程師 個影片檔及 b 捲影像00:20
technician inspecting the manifold wall cabinet of floor heating system in development - 採暖工程師 個影片檔及 b 捲影像00:19
technician inspecting the manifold wall cabinet of floor heating system in development - 採暖工程師 個影片檔及 b 捲影像00:18
professional technician installing manifold wall cabinet of the floor heating system - 採暖工程師 個影片檔及 b 捲影像00:15
construction industry concept - architects and engineers discussing work in construction site. laying water pipes in buildings. - 採暖工程師 個影片檔及 b 捲影像00:16水管
caucasian male heating engineer adjusting thermoastat on the gas boiler and checking gas installation, while using digital tablet - 採暖工程師 個影片檔及 b 捲影像00:21
caucasian male heating engineer adjusting thermoastat on the gas boiler and checking gas installation, while using digital tablet - 採暖工程師 個影片檔及 b 捲影像00:17
caucasian male heating engineer checking the gas boiler and gas installation, while using digital tablet - 採暖工程師 個影片檔及 b 捲影像00:17
a technician in a vest and hat carefully works on the internal components of a wall-mounted boiler. - 採暖工程師 個影片檔及 b 捲影像00:12
a technician in a vest and hat carefully works on the internal components of a wall-mounted boiler. - 採暖工程師 個影片檔及 b 捲影像00:29
a technician in a vest and hat carefully works on the internal components of a wall-mounted boiler. - 採暖工程師 個影片檔及 b 捲影像00:14
a technician in a vest and hat carefully works on the internal components of a wall-mounted boiler. - 採暖工程師 個影片檔及 b 捲影像00:09
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:17
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:16
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:17
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:17
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:17
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:20
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:19
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:15
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:18
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:16
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:15
two professional engineers control manage robot arm welding automation in heavy industry. - 採暖工程師 個影片檔及 b 捲影像00:14
engineering and technician at control room, machine maintenance and industrial inspection - 採暖工程師 個影片檔及 b 捲影像00:19
engineering and technician at control room, machine maintenance and industrial inspection - 採暖工程師 個影片檔及 b 捲影像00:18
engineering and technician at control room, machine maintenance and industrial inspection - 採暖工程師 個影片檔及 b 捲影像00:15
engineering and technician at control room, machine maintenance and industrial inspection - 採暖工程師 個影片檔及 b 捲影像00:16
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:18
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:15
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:11
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:18
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:28
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:17
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:36
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:20
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:17
assembled a 3-inch gasoline water pump with an 8.5 horsepower engine to pump water for agriculture. - 採暖工程師 個影片檔及 b 捲影像00:22
professional maintenance engineers inspecting water system in basement building. - 採暖工程師 個影片檔及 b 捲影像00:12
professionals inspect plumbing and control valves for industrial maintenance | engineers checking gas piping systems. - 採暖工程師 個影片檔及 b 捲影像00:18
professional plumber conducting a thorough inspection of water pipes within an underground construction site, addressing maintenance needs and pipe repairs to ensure a reliable water supply. - 採暖工程師 個影片檔及 b 捲影像00:18