... products possess the properties of weak acid-resistance, high alkali-resistance,high mightiness. Model No.Density(counts/10cm)Thickness( ... acid-resistance, high alkali-resistance,high mightiness. And the melting point is 215-250°C,maximum operating temperature 130 C. ... of strong alkali operating conditions,such as frame filter presses, discfilters,and centrifuge filters.The filtering precision ...