... Good wet stiffness Excellent bend recover Nylon Filament for Toothbrush,Pa610/PA612 toothbrush Filaments 1.Product Description:- ... Group, Mainly produce filament include Filament for paint brush, filament for toothbrush,and abrasive filament,Main Material is ... and bobbin,- Light conducting filament, Fluorescent filament, Christmas Tree filament,- Artificial grass mat filament, Golf mat filament, ...