... (single layer) 4.simple operation JW318B Two for one twisting machine Application Range:Cotton yarn, wool yarn, polyester yarn, pure polyester ... 20/2-100/2 Ne Winding crossover semi angle 12.15°, 15.24°, 16.68°, 19.09°, 21.86° Twisting direction S ... are interested in, pls feel free to contact me! Textile machine-Two for one twisting ...