... Description:-PA612 (Polyamide 612 or nylon 612) resin, PA610 (Polyamide 610 or nylon 610) resin and PBT resin are melt-extruded into ... for paint brush, filament for toothbrush,and abrasive filament,Main Material is PET,PBT,NYLON, PA6,PA610,PA612,PP.We ... that our products safety, environment friendly, and reliability satisfy our customers and end users. Nylon 610/612 Filament for Toothbrush,Pa610/612 ...