DURAK Poly-Strong PC is a Poly-cotton core thread. Because of their high strength and structural features Poly-cotton core threads are excellent threads providing optimal seams
DURAK Poly-Strong PC UV is a thread made from 100% Poly-Poly with the additional characteristic of being UV resistant.
DURAK Poly-Strong PC WR is a strong water repellent poly-cotton thread where the polyester core is covered with cotton.
DURAK Poly-Strong PC CFR are cotton covered core threads to which a flame protective solution is added.
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