While carpet may be a good use for off-spec PET recyclate, high-quality recycled PET may be better reused 
(carpet; may be; a good use for off-spec PET recyclate) (high-quality recycled PET; may be; better reused) (high-quality recycled PET; better reused; )
carpet high-quality recycled PET high-quality recycled PET
may be may be better reused
a good use for off-spec PET recyclate
better reused