HW-PSD15 sheet drain,drainage matis suitable for the bulkhead, the basement, the tunnel, the pitch, the flowered trough sheet drain,drainage matproduct: HW-PSD15Color of under plate: Black/WhiteMaterial quality: High PolystyreneQuality(g/):720Thickness (mm): 15Compressive strength (kpa): 300Color of Geotextile Membrane : Black/WhiteMaterial quality : Polyester fiberHole caliber (mm) : 0.15Runoff ...