Detailed Product Description The polypropylene needle felt has the lowest temperature resisitance,with its reasonable price and excellent hydrolysis resistant,anti-acide,anti-abrasion,etc.and mainly is applied to the low temperature and high humid conditions. Features: Products name:PP needle felt Material: polypropylene fiber Weight: 700gsm Thickness: 2.2mm Tensile strength (n/5/10cm): a) Warp: 1,200 b) Weft: 1,300 Tensile elongation: a) Warp: