... making sweater,socks 1) Spandex 20D+ Polyester 75D Yarn 2) Air-covering or traditional-covering 3) Produced with Japanese-made ... machinery4) Common model: A2015, A2030, A2040, A2040/2, A2050, A2070, T2015, T2030, T2040, T2040/2, T2070, etc.5) Draft ratio range: wide ... in various specifications according to customers' demands Spandex 20D+ Polyester 75D Yarn