Spandex + Nylon yarn, for making sweater or seamless underwear  1) Spandex + Nylon yarn2) Air-covering or traditional-covering 3) Produced with Japanese-made or Italian-made machinery4) Common model: A2015, A2030, A2040, A2040/2, A2050, A2070, T2015, T2030, T2040, T2040/2,...