... Good wet stiffness Excellent bend recover Nylon Filament for Toothbrush,Pa610/PA612 toothbrush Filaments 1.Product ... Group, Mainly produce filament include Filament for paint brush, filament for toothbrush,and abrasive filament,Main Material ... electrostatic effect filament,- Flaggable filament, Crimped filament,- Negative-ion filament, tourmaline filament,- Anti-microbial filament, Nano anti- ...