Nylon 66 filament is a material with heat-resistant, good low temperature performance product,high abrasion resistant. Diameter0.10mm or ... ,SpoolQualified TestsFDA,RoHS,REACH,EN71,EEC,PAHsNylon 66 filament is the heat-resistant, good low temperature performance product. And it's also ... , cleaning brush and industrial use, etc. Nylon 66 for making hair brush