Structure: pp spunbond nonwoven+polyethylene+pp spunbond nonwoven Width:                     100cm,   150cm   weight:                    from 30gsm to 400gsm   length:                    25m-50m-100m   hydrostatic head (pa):        >2500   tensile strength (n):         105-350(cd)  65-250(md)   elongation (n):             68-150(cd)   72-150(md)   water-vapor permeability:     0-2500g/m2:                              series i>2500,                               series ii around 1000                             series iii around 15    annual output: 500ton