HW-PEZ 30 drainage sheet,sheet drainage,drain sheet,drainage cell The HW-PEZ30 CorDrainage is pouring plastic by PP; the surface is covered by grotextile membrane, thus forms a combination drainage plant. It is a square block; 9 blocks compose one square. It is suitable in the large-scale square; the golf course, HW-PEZ30 and the HW-PSS18 use together can enhance HW-PSS18's effect. Details see (chart: structure of underground project roof) Product: HW-PEZ30 Color of under plate: Black/White Material quality: PE Quality(g/): 3150 Thickness (mm): 30 Compressive strength (kpa): 1000 Color of Geotextile Membrane : Black/White Material quality : Polyester fiber Hole caliber (mm) : 0.15 Runoff rate : 320 Tensile strengthN : 160 Quality(g/) : 150 Specification of CorDrainage(mm): 333×333 Flow rate (Loss 5cm) (L/S) : 3.5 Flow rate (Loss 10cm) (L/S) : 5.2 HW-PSD20106 CORDRAINAGE The HW-PSD20 CorDrainage develops on the basic off the HW-PSD10, is made by the high polystyrene (HIPS). The surface is joined to an adhesive-bonded cloth, thus forms a combination CorDrainage. HW-PSD20 is the one-sided raised Taiwan draining plant, only then the draining water function, compares with HW-PSD10, the HW-PSD20 displacement is bigger. Is suitable quite is deep in the soil layer does not need to store water the function large-scale square to afforest, project and so on garage roof afforestation. The construction for details sees (chart garage roof project) Product: HW-PSD20(106) Color of under plate: Black/White Material quality: High Polystyrene Quality(g/): 860 Thickness (mm): 20 Compressive strength (kpa): 200 Color of Geotextile Membrane : Black/White Material quality : Polyester fiber Hole caliber (mm) : 0.15 Runoff rate : 320 Tensile strengthN : 160 Quality(g/) : 150 Specification of CorDrainagemm: 1200×16660 Flow rate (Loss 5cm) (L/S) : 2.9 Flow rate (Loss 10cm) (L/S) : 4.2