... ,long workinglife 3,hard wear,no jiont 4,heat temperature resistance polyester sprial filter dryer mesh belt Flat ... surface, high tensile strengthGood air permeabilityStable property against heat and moistureLow thermal shrinkingLess ... Filtration, Sieving, Mining industry Spiral belt , filter fabric, dryer screen : Spiral belt Purpose : producing of paper, corrugated paper ...