Prefabricated cover suitable for laying on building sites comprises elements positionable side by side to form a surface, additionally includes means for adjusting the thickness of the cover at required points

摘要

The prefabricated cover suitable for laying on level building sites (3) comprises elements (1) positionable mosaic-fashion side by side, and agents (2) for joining such elements to form a surface, additionally includes means for adjusting the thickness of the cover at required points.