... This machine is used double twister high speed draw-texturing machine, it is new, high speed, high efficient long yarn processing equipment. ... hard against when involution, enables the silk to have good high speed draws back performanceElectronic twister, online tension system, additional ... ,2 roller, spandex feeding system is optional YJ1200A-DS HIGH SPEED DRAW-DOUBING MOTOR SPINDLE TEXTURING MACHINE