PA6 spool
Polyamide (PA) polymers, which we call in our trivial round NYLONS are synthetic polymers. The main material is a composition of polyamides, which are very strong beacuse of their specific semi-crystal structure. PA6 is not incorporationg any recyled or recovered materials. PA6 is used very much in the automotive industry. You can even make very strong gears from PA6.