... 1.pvc roofing membrane 2.Thickness:1.0mm,1.20mm,1.50mm,2.0mm 3.good strechbility, waterproof, anti-aging 1.pvc roofing membrane 2.Thickness:1.0mm,1 ... .20mm,1.50mm,2.0mm 3.GB12952 ... High tensile strength and elongation High stable in change of dimensions Excellent flexibility in cold Water Impermeability Best weldability high quality PVC ...