| 摘要 |
A method of levelling the upper surface of a perforated floor panel relative the upper surface of another panel, each said panel having spaced upper and lower surfaces having different depths, said lower surfaces of said panels supported by pedestal means comprising the steps of selecting different thicknesses of said upper and lower surfaces of said perforated floor panel relative said other panel; selecting a first layer of a first thickness on said upper surface of said perforated floor panel and a second layer of a second thickness on said upper surface of said upper panel so as to level said layers of said perforated floor panel relative said other panel when said panels are supported by said pedestal means.
|
