... layer without shrink;4. Improve and make sure the use of asphalt road;Features:1. High ... impermeability, filteration, drainage, reinforcement and protection.Application:t is widely used in the areas of railway, highway, water conservancy ... , dam, tunnel, subway and environmental protectionTechnical Specification:Weight (g/m2)Deviation of unit area and mass, (%), <=Thickness, (mm), >= ...