Min. Order Reference FOB Price
1000 Square Meters US$0.25-3.50 / Square Meter
Product Description
Product Description A blanket like waterproof material made mainly from sodium based bentonite and processed by needle punching, needle punching film coating, or adhesive method. Sodium based bentonite, also known as sodium based montmorillonite, can expand more than 24 times in contact with water ...