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A huge layer of terrible dust on the speaker grill of an audio system
Disk for laundry dryer lint filter
Industry cooling system, water cooling of air conditioner,HVAC of a large industrial building to control air system
Boiler room with insulated pipes.
Closeup of a metal screw pump to pump water from low to high. Also known as Archimedes screw pump or water screw.
detail from a ventilation system
Laboratory
Construction of a boiler house - flue gas condenser
Inside of the condenser cooling system
spotlight. Equipment for indoor shooting.
Large carbon cioxide chemical tank
Chiller tower for HVAC system.
condenser water pump and  Air cooled water chiller
Rusty steel window frame supports a big industrial extractor fan.
metal tower of reservoir clad with sheet metal aluminum cladding. rivets and corrugated sheets resemble a spaceship, or an alien UFO civilization. silver metallic shiny column and conical water tank. cladding, resemble,
Biofuel boiler house construction site
Tunnel made of rounded steel pipes.
Close-up of cooling part of road roller
Chinese traditional tile decoration structure
Industrial building ventilation pipes
Large Carbon Dioxide Chemical Tank
air conditioning chimney isolated on white
New septic tank for collecting rainwater or separate sewage. container  for underground on the construction site of a private house. Home improvement
Box with air conditioner for rooftop mounting
Big gun. Rifled weapons. A section of the gun barrel with rifling. Barrel artillery. large - caliber gun.
Treatment tank platform of chemical plant under construction
Giant steel industrial grinder at the food industry plant
Rooftop HVAC installation with air handler and chiller towers.
Steam Boiler
Interlaced pipes at chemical plant construction site
Free Images: "bestof:Zibold condenser (section).jpg en Zibold's dew condenser a is a truncated cone of beach pebbles 20 m in diameter at the base and 8m in diameter at the top b is"
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Ohakuri Dam Blue Penstocks.jpg
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