Positioning, leveling and adjustment device for construction site marks such as electrical boxes and bases, grid marks has supports for maintaining box, and adjustment pieces that are provided for support base
摘要
<p>A track is provided with a leveling unit in at least one but preferably three axes in space. Supports maintain a box that is adjustable in length and depth. Adjustment pieces are provided for a support base such as a frame at a second level.</p>
