The tensile toughness of about 3000 psi is a normal specification parameter for your technical parameters for one-covered spandex yarns; this ensures adequate toughness but retains overall flexibility along with a soft hand sense. Elasticity，longevity，breathability，versatility，condition retention，superior dyeability，light-weight The e-mail address you offer for get processing, w... https://smokingthread45554.azzablog.com/31823295/not-known-details-about-covered-spandex-yarn