Super Tapered PBT Toothbrush Bristle Filament
Super Tapered PBT Toothbrush Bristle Filament -Toothbrush Filament Bristle Product Description: PBT Tapered Toothbrush filament are made of PBT (polybutylene terephthalate)filaments chemically treated to produce the unique tapered ends. PBT
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