... yarnOur company specializes in producting all kinds of polyester yarn and a variety of multi-twine(3S-40S),and high tenacity thread ,DTY ... , FDY polyester yarn:150D,250d,300d,450D and dyed yarnhigh ... tenacity polyester yarn250D,300D,500D1000d,1500d,2000d,3000d spun polyester yarn Specification:commonly used (english count): 6s,8s,10s,12s, ...