Leveling tool for the bottom row of bricks in a wall, on a concrete foundation, has screw points to be laid in the fresh mortar on the concrete surface
摘要
<p>The leveling tool (1), for the bottom layer of bricks in a wall, has a screw unit (4) with at least three points to be laid in fresh mortar (2) on a concrete foundation (3) to adjust the tool into a level condition.</p>
