... screen is mainly used in the dryness part of paper-making machines, drying process of printing and dyeing and other industrials ... . Polyester spiral filter screen is mainly used in sludge desiccation, paper pulp washing, coal washing, chemicals, dehydration of wine bran, ... in the high ventilation part of the dryness part of paper-making machine.Technical Index : ModelThread Diameter (mm)Thickness(mm ...