... dam, road 2.material:pp or pet 3.gramweight:100g~800g aqm. PP or PET short fiber needle punched non woven ... of the railway dregs and the roadbed, roadbed and the soft base, surface of the airdrome and parking lot and the groundsill, different ... 800GSM4..PropertyGood flexibility, permeability, filtration, separation,adding muscle, protection and easy for construction. 5.Size of packageWidth 2m-6m,length ...