... with Japanese machinery 2.Available for socks,underwear,narrow fabric 3.Large quantity and ... 560D,620D,720D,840D,1120D,1680D for diaper. Soft spandex RYT902C 120D,180D,260D,560D,720D,840D ... Due to the polymer chain is formed by soft segments and hard segments. Ruyi spandex can ... near its original length and shape, and Lightweight, soft, smooth, supple,greater evenness,stability and thermal resistance ...