we can produce the spandex from 15D to 2500D uahai spandex is a high-class elastic fiber with the following features:1) Highly elastic, thin, long stretch, low specific gravity, low ammonia content2) High strength, high elastic modulus, breaking elongation may reach 550% and above, good wear resistance3) High temperature resistant, heat setting temperature 190, good chromaticity4) Even denier, ...