BYING FILLING WAD INTO THE SPRIAL FABRICS TO REDUCE THE AIR PERMEANBILITY SO ORRIFICE CHANGE TO COMPACT REDUCE MATTER RUNNING OUT FROM FABRICS TRANSSSVERSE ERECT,IT IS MAJOR USED TO WASH PLASM COAL AND SLUDEG SEWATERING.
IT IS SUGGEST TO USED ON THE DRYNESS PART OF PAPER MACHINEIN LOW AIR PERMEABILITY.