ADJUSTABLE HEIGHT SUPPORT FOR HOLLOW SOILS.

摘要

Height-adjustable support for hollow floors, consisting of a core with external thread and at least one plate with a conjugated internal thread, characterized in that the core and the plate are made of fiber reinforced set plaster, the core having a diameter of 70 to 120 mm and the plate having a height of 25 to 50 mm, as well as a length of its sides of 110 to 220 mm.