... wire, Tensile properties, High-intensity,Thermal stability,Anti-UV stability,Anti-acid,etc. Tensile properties: Polyester curtain line stretches ... aging, but also extend its service lifePermanent smoothness: Polyester screen line-up not hygroscopic, after years of use ... the sun insulating curtain of wear and tearEnvironmental protection: Polyester screen line up without corrosion, non-polluting, has ...