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The top documents tagged [counterbalance slide]
Backdraft Dampers. Backdraft Damper Training Application Backdraft dampers allow air to flow in one direction only and prevent unwanted (hot/cold outside
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The Dinosaurs of Jurassic Park. Velociraptor Bipedal, feathered carnivore 6-7 feet long; 2 feet tall 15-35 lbs. Lived in Cretaceous
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LIFTING AND MOVING HEAVY OBJECTS. Introduction Rescue personnel often think that the physical laws of the universe do not apply when there is "an emergency.“
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