... product of the nylon series. It's used for cleaning brush, industrial brush and so on. 1.Desc.Nylon 6 filament is the ... product of the nylon series. It's used for cleaning brush, industrial brush and so on.Nylon 6 filament has outstanding mechanical performances ... of filaments for toothbrushes, tapered filaments, abrasive filaments, and industrial filaments.The main material is PBT,NYLON,PA6,PA66,PA610 ...