... (PET), Polyvinyl or synthetic fiber on needle punch machine.2)The mass is available from 100gsm/m² to 1000gsm/m² and ... production ability is 10 million square meters.5)The major functions: Separation, filtration, drainage, reinforcement, protection, and liquid barrier.6) ... Application: It is widely used in the areas of railway, highway, water conservancy, dam, tunnel, subway, ...