compressing the fibrous material to a mat fleece {TAIL ~ whose entire surface} is connected to {HEAD ~ the foamable adhesive} to form a composite mat 
compressing the fibrous material to a mat fleece { TAIL ~ whose entire surface } is connected to { HEAD ~ the foamable adhesive } to form a composite mat
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH