... , black in 100, 120, 140, 150, 180, 200grm/m2. Polyester needle punched Geotextile colour: white, blackin 100, 120, 140, 150, 180, 200grm ... in water conservancy,electric power,mining,road and railway projects Filter material for soil separationDrainage material for reservior,mine and foundation ... frost and freezing;Anti-crack material for asphalt road; Polyester needle punched Geotextile