| 摘要 |
A metal safety rail for open floors of a building under construction includes a baseplate 12 secured to a floor surface 14, a substantially vertical inner stanchion 16 integrally joined to the baseplate 12, a substantially vertical outer stanchion 18 slidably disposed over the inner stanchion 16, and at least one guard member 20 secured to adjacent outer stanchions 18, whereby a safety rail is ultimately disposed about a peripheral portion of an open floor of a building under construction to prevent workers from falling from the open floor to the ground below.
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