OUR DRAINGE COMPOSITE SHEET IS PRODUCED BY THE HDPE EXTRUSTED MACHINE TO GET THE HDPE LINER AND THEN USE THE SPECIAL SYSTERM TO GET THE 3D CUSPATED INSTRUCTIONS . SO , IT IS BETTER THAN THE CLASSICAL WATERPROOF LINER . FIRST , IT HAS THE WATERRPOOF EFFECTALY .SECONDLY THE 3D CUSPATED INSTRUCTIONS CAN PREFECT FROM THE COOL ARI AND WATER AND ALSO CAN FILTER THE WATER AND AIR .. WITH THE COMPOSITE OF GEOTEXGILE 

 MAX 3M WIDTH X 16M LENGTH PER ROLL ANC COVERING WITH THE WOVEN GEOTEXTILE 

 WE WILL GIVE THE LOWEST PRICE AND GOOD QUALITY . AND WE HAVE  PRODUCED AND DONE THE INTERNATION BUSINESS FOR ABOUT 11YEARS , WE CAN PRODUCE MORE NEW TYPE PROUCTS FOR YOU .WE WANT TO COOPERATE WITH YOU BY OUR BEST