Fibrous reinforcements only characterised by the structure of fibrous reinforcements {, e.g. hollow fibres} using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
Fibrous reinforcements only characterised by the structure of fibrous reinforcements {, e.g. hollow fibres} using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres