1.WEIGHT:500/m2 2.THICKNESS: 1.9mm 3TEMPERATURE :140-160'C PERMEABILITY :150-200mm/s calendering singeing In the series of normal temperature filter media, the PP needle punched felt has the lowest temperature resistance, with its reasonable price and excellent hydrolysis resistant, anti-acid, anti-alkali, anti-abrasion, and mainly is applied to the low temperature and high humid conditions. PE ...