... toothbrush,and abrasive filament,Main Material is PET,PBT,NYLON, PA6,PA610,PA612,PP.We adopt high quality material from the ... filament,- Heat-stabilized filament, High temperature filament, - FR filament : Fire retardant filament, UL-V0 FR filament,- Anti-electrostatic effect filament,- Flaggable filament ... and reliability satisfy our customers and end users. PolyAmide filament/PA6 toothbrush filament