... filament is used for processing toothbrush, food-industry brushes, paint brush and cosmetic brush, etc.PBT tapered filament is ... of filaments for toothbrushes, tapered filaments, abrasive filaments, and industrial filaments.The main material is PBT,NYLON,PA6,PA66,PA610 ... all brushes and industrial applications. 11.Cetificate 1)PBT tapered filament toothbrush 2)PBT filament for paint brush 3)PBT ...