... :50D/36F,75D/36F,100D/36F,125D/36F,130D/36F,150D/48F,200D/96F,300D/96F Although the fiber made by ... the similar characters with polyester fiber,thr temperature of PBT fibers melting point andglassily is more lower than polyester fiber, ... areas especially making swimsuit,training wear,elasticized jeans and bandage for medical treatment.Space:30D-300D(DTY) pbt dty yarn