On February 21, the domestic polyester filament market showed a stable trend, and the center of gravity of the manufacturer's quotation was stable. Jiangsu and Zhejiang mainstream factory polyester POY150D/48F at 8900-9200 yuan/ton, DTY150D/48F(low bomb) at 10410-10700 yuan/ton, FDY150D/96F at 9150-9400 yuan/ton.