Rongsheng chemical fibre group, one of biggest manufacturers of 100% polyester yarn, was established in 1989. Our annual production is about 600,000 tons, which includes poy fdy and dty. The production equipment we use now is barmag and muratec. The specification of poy is from 50d to 300d, fdy is from 50d to 500d and dty is from 50d to 600d. Now do business with many countries in european and in south american.