PBT One-End Single Tapered Toothbrush Bristle Filament
PBT One-End Single Tapered Toothbrush Bristle Filament -Toothbrush Bristle -Interdental Brush Filament Product Description: PBT Tapered Toothbrush filament are made of PBT (polybutylene terephthalate)filaments chemically treated to produce
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