1) Nylon Spandex series:
N12D+20D, N15D+20D, N30D+20D, N40D+20D, N50D+20D, N70D+20D, N40D+40D, N50D+40D, N70D+40D, N100D+40D, N140D+40D, N200D+40D, N70D+70D, N100D+70D, N140D+70D
Including air cover yarns and mechnical cover yarns.
2) Polyester Spandex series:
T28D...