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Closeup of plastic pellet on finger |
Coal pile with blue sky |
Coal pile with twilight sunset sky |
Coal piles with loader in background |
Cement plant in west Texas |
Gray gravel at cement plant in west Texas |
Blue-gray gravel at cement plant in west Texas |
Concrete plant piles of crushed rock |
Concrete plant piles of crushed rock with loader and silos |
Steam shovel digging rock in cement plant |
Ends of stacked lumber |
Workers leaving construction site |
Workers leaving construction site |
Workers gathered at construction site |
Soldering gun with vacuum tubes |
Cottonseed oil tanks |
Warning signs |
Worker operating granite or stone cutting saw |
Workers at granite or stone polishing machine |
Worker operating granite or stone cutting saw |
Workers and reflections at granite or stone polishing machine |
Worker shaping hole in granite slab |
Welder cutting large metal tube or pipe |
Worker grinding inside of large metal valve |
Welder cutting large metal tube or pipe |
Three workers moving large block of granite or stone in quarry |
Two workers drilling holes in large block of granite or stone in quarry |
Two workers drilling holes in large block of granite or stone in quarry |
Two workers drilling holes in large block of granite or stone in quarry |
Welder in tank with shadows |
Welder with sparks |
Welder cutting metal piece on factory floor |
Welder cutting pipe |
Welder welding inside large metal valve |
Crane operator with spare parts safety sign |
Dock workers unloading pipe at the port of Houston, Texas |
Dock workers unloading pipe at the port of Houston, Texas |
Workers holding bottle in glass plant in Monterrey, Mexico |
Worker in pink shirt with yellow rope |
Man at industrial controls with red beacon |
Welder cutting metal pipe |
Long line of workers in hard hats leaving work |
Large group of workers in hard hats |
Large group of workers in hard hats leaving work |
Tiny plastic pellets |
Crescent wrench on sewer access cover |
Sewing scissors on buttons |
Metal file on copper metal |
Welder working on railroad tank car |
Water treatment plant in Portland, OR |
Two men inspecting stack of lumber |
Man inspecting stack of lumber |
Olmsted-Kirk Paper warehouse in Houston, Texas |
East Texas wood processing plant |
Truck loading at wood processing plant near Houston, Texas |
Wood processing plant near Houston, Texas with railroad cars in foreground |
Stacks of wood at wood processing plant near Houston, Texas |
Wood processing plant near Houston, Texas |
Wood processing plant near Houston, Texas with waste water ponds in foreground |
Wood processing plant near Houston, Texas |
Trucks near wood stack in wood processing plant near Houston, Texas |
Front loader and truck at wood processing plant near Houston, Texas |
Wood processing plant near Houston, Texas |
Detail of lumber ends in stack |
Truck in wood processing plant near Houston, Texas |