7 joints (parts of engines) ; filter elements for application in machines or parts of engines
11 fibres made of synthetic material used as filter material namely filters being parts of household and industrial installations
17 fibres made of synthetic material such as for heat or sound non-conducting materials for retaining for use in the car, domestic and acoustic industry;packing, stopping and insulating and filter materials
21 fibres made of synthetic material for use in articles for household cleaning purposes, namely cloths for washing floors, dusting cloths
22 fibres made of synthetic material for textile use
24 fibres made of synthetic material for use in fabrics and textile products as far as not included in other classes