flat collar knitting machine gauge : 5G 6G 7G 9G 10G 12G 14G 16G width:32,54,66,80 inches flat collar knitting ... system multistage combined type roll system.controled by DC electric machine, 4 grade to adjust.transmission mode frequency control, synchronous ... and stop, Red: regular working and stopsafty cover whole machine covered by transparent plexiglass, saftey, low voice.computer control ...