... of strong acid-resistance, good alkali-resistance, small specific gravity, good hydrolyzationresistance and good oxygenation resistance, and ... in the precision chemical, dye chemical,sugar, pharmaceutical, alumina industrial, for the equipments of frame pressfilter, belt ... -resistance, strong alkali-resistance,and high mightiness, specific gravity of 1014g/squ.MT, and maximum operatingtemperature of ...