... good flame retardant properties, and can withstand temperature of 300 degrees, cut-resistant performance.2,Company ... produces a variety of pure aramid yarn, including single yarn (5S, ... 20/2 30/2, 40 / 2, etc.), three strands of sewing thread (10/3 20/3 30/3 40 ... be used as the warp and weft yarns of aramid fabric, protective clothing, high temperature filter ...