The tensile power of about 3000 psi is a typical specification parameter for that technological parameters for single-covered spandex yarns; this ensures enough strength but retains overall flexibility plus a comfortable hand come to feel. A: The spandex Main refers back to the central Element of a covered yarn crafted https://coveredelasticyarn12086.ampedpages.com/the-basic-principles-of-covered-spandex-yarn-58873142