... environmentally friendly 2.Commercial roofing material TPO Membranes with Double Side Fabric Product Description The Thermoplastic Polyolefin (TPO) ... flaw,delamination,coherence,holeTensile strength retention,%≥90Elongation rate of keeping,%≥90 Low temperature bend-40°C, ... flaw,delamination,coherence,holeTensile strength retention,%≥90Elongation rate of keeping,%≥90Low-temperature bending-40°C, No ...