... (single layer) 4.simple operation JW318B Two for one twisting machine Application Range:Cotton yarn, wool yarn, polyester yarn, pure polyester ... adopts flexible positioning, decrease the vibration, it is convenient to threading;3. Adopts capsule tension regulator to make the twisting range ... crossover semi angle 12.15°, 15.24°, 16.68°, 19.09°, 21.86° Twisting direction S or Z Twist 85-2160T ...