5911 4000 10

5911400010

Non-wovens, consisting of poly(ethylene terephthalate) spun bonded media:  -in the piece, cut to length or simply cut to rectangular (including square) shape,  -of weight of 160 g/m² or more but not more than 300 g/m²,  -with a filtration efficiency of class L or better (according to DIN 60335-2-69),  -pleatable,  with or without following treatments:  -a coating or covering with polytetrafluoroethylene (PTFE),  -a coating with aluminium particles,  -a coating of phosphorous based flame retardants,  -a nano fiber coating of a polyamide, a polyurethane or a fluorine-containing polymer -an expanded polytetrafluoroethylene (ePTFE) membrane