... Good wet stiffness Excellent bend recover Nylon Filament for Toothbrush,Pa610/PA612 toothbrush Filaments 1. ... Polymaid filament, Nylon6 filament, Nylon66 filament, Nylon 46 filament, Nylon 610 filament, Nylon 612 filament,- PBT filament : Polybutylene Terephthalate ... Paintbrush filament,- Carwash brush filament,- Strip brush filament, door seal brush filament, spring brush filament, - Pipe ...