| 摘要 |
A convertible protective guard fixture for open work areas in building construction having two vertical posts which support a barrier frame member. The vertical posts having movable collars with a first locking means attatched to each collar in vertical positioning of the collar on the vertical post and a second locking means attatched to each collar used for supporting and retaining the barrier frame member. The barrier frame member also having a foldable and detachable section to provide convertibility.
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