Leveling layer: In order to prevent the moisture of the concrete leveling layer from infiltrating into the insulation layer, fine-stone concrete is used for leveling, tapping and pressing.
Find the flat layer: In order to prevent the concrete to find the water of the flat layer seeped into the insulation layer, with fine stone concrete to find flat, realistic, pressing light.
Leveling layer: in order to prevent the moisture of concrete leveling layer from seeping into the insulation layer, fine aggregate concrete is used for leveling, tamping and calendering.<br>