Bitumen-indistribal Substrate-A Pressed Cork Crumba, Laid Down on a Craft-Paper Processed with Bitumen, IS Distinguined by Good Sound Insulation, A High Degree of Prootiation Gainst Moisture, Levels The Surface; Composite Substrate-a Combination of Various Materials, Usually Involves The Usa of a Polyethylene Film AS AGAINST MOOISTURA and Porous Granular Materialar Materialar Material. High -quality Substrate Significantly Increases The Durabiley of the Parquet Floor and Helps to Preserve Aesthetic Appe.