... Good wet stiffness Excellent bend recover Nylon Filament for Toothbrush,Pa610/PA612 toothbrush Filaments 1.Product Description:- ... Hongda Group, Mainly produce filament include Filament for paint brush, filament for toothbrush,and abrasive filament,Main Material is ... filament,- Personal care brush filament : Lip brush filament, Eye defining brush filament, Kakuki brush filament, Makeup brush filament, ...