Close up of danger sign against coronavirus outbreak in hospital ward. Infectious zone in isolation and quarantine against covid 19 pandemic with biohazard symbol on glass. Lockdown virus area
tree cut with saw, cutting wood, using a chainsaw, chopping firewood with an ax, lumberjack man
Full shot of Hispanic female woodward in khaki sweatshirt and utility pants cordoning off forest area with barricade tape, while Indian male colleague is putting up wild animal warning sign
Focused female electrician in hard hat and safety glasses connecting cables in server room
Worker welding at the factory. Frame. Close-up of working man
POV of a tourists feet walking cautiously on a glass bottom see through bridge
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Workers at machine-building plant with welding work. Stock clip. Industrial plant with metalworking and handymen. Welding works at
Close up of African American man in hard hat connecting wires while working at industrial factory
Empty laboratory danger area with nobody in it, prepared for pharmaceutical innovation using high tech and microbiology tools for scientific research. Vaccine development against covid19 virus.
Big hook close-up of a tower crane with cloudy sky.
Close-up portrait of a heroic fireman in a protective suit. Firefighter in fire fighting operation.
Power station with Danger High Voltage sign 4k
Worker welding metal pipe at construction site
Unrecognizable lumberjack with chainsaw and harness pruning a tree.
The work of firefighters. Clip. Men extinguishing a fire with special foam through special equipment.
Aerial view of an industrial roof, roofers installing a new roof on an industrial building or warehouse.
Slowmo of two biotechnology inspectors in protective coveralls and respiratory masks examining dark smoky secret laboratory in emergency
Chest up slowmo of African American male biotechnologist in protective coveralls and respiratory mask examining different substances in secret laboratory
Verification work of firefighters or employees of emergency services. Clip. A man checks the work of Fire extinguishing foam on the street.
Professional worker in mask welds parts at factory. Clip. Welder in overalls works at factory. Welding of metal parts in factory
Team of scientists in coverall researching virus mutations working in danger zone in chemistry laboratory. Group of doctors examining vaccine evolution using high tech for diagnosis against covid19
Dolly in shot of manager in warehouse supervising trainee sealing cardboard box packages. Storage building personnel properly securing goods
Person in protection gloves on the edge of the roof hold smoke stick
Fire fighters heroically carrying away helpless girl and searching for other survivors then leaving burning hallway during rescue operation
Land surveyor assistant in uniform works with levelling rod on construction site
Student freelancer working from home during coronavirus quarantine. Young man in protective mask using laptop. Blogger working at home.
Pouring Hot Metal: Metalworks
Side-view medium shot of unrecognizable man working as welder doing his job welding steel and other metals at tractor plant
Steeplejacks working on a frontispiece of a skyscraper
Medium wide shot of multiethnic forest officer in khaki uniform installing caution sign warning of wild animals on footpath in woodland, and female colleague looking through binoculars in background
Medium slowmo of two biotechnologists in protective clothing heating test tube with liquid substance while conducting experiment with chemical burner in dark secret laboratory
Firefighter in protective uniform and helmet pouring foam from hose to ground while standing in thick fume and extinguishing fire
Midsection shot of unrecognizable male hands holding welding machine working at industrial plant producing tractors and other vehicles
wheel grinding on steel structure and making sparks
Man in protective uniform talking with African American coworker while working on remains of demolished building after natural disaster
electrician is working inside electrical panel in plant, breaking equipment, alarm flashing, dangerous voltage, worker is afraid
Full shot of multiethnic man and woman in khaki warden uniforms working together in pine forest in summer, and closing off dangerous area with barricade tape
Worker in protective suit inside the ruined building in abandoned area, low angle view
Cliff area warning in forest tilt shot
Close up of worker hand using grinder cutting concrete floor with electric saw to lay electrical wiring, floor repair. dust and sparks
Portrait of a heroic fireman in a protective suit. Firefighter in fire fighting operation.
Vertical video Warehouse team leader doing introduction training to new intern starting job, teaching him safety measures around storage
Washing windows might by risky...
Group of serious male firefighters in uniform standing on road near crashed vehicle and fire engine on accident site
Crop paramedics fixating head of injured senior survivor with blocks during rescue mission on remains of destructed building
Detail of crane in construction site. Heavy industrial equipment in new building
From below of anonymous firefighter in uniform climbing up fire engine ladder outside brick building during rescue mission on cloudy day