... 16Gwidth 32,54,66,80 inches knitting speed Controlled by frequency conversion to adjust speed,6 grade speed ,Max.Speed: 1 ... type roll system.controled by DC electric machine, 4 grade to adjust.transmission mode frequency control, synchronous belt moves back and ... and stop, Red: regular working and stopsafty cover whole machine covered by transparent plexiglass, saftey, low voice.computer control ...