(1)、thickness:1.6-1.8mm(2)、g:500g/m2(3)、permeability:≤50dm3/m2/s(4)、longitude:700N/5×20cm(5)、latitude:1100N/5×20cm(6)、intensity of stretch and break longitude:<35%(7)、intensity of stretch and break latitude:<35%(8)、temperature:130℃(9)、filtration wind speed:1.0-1.5m/min(10)、post-treatment : singeing and stereotyping process、membrane