1.Drumless, fully automatic electronic control system 2.Electro-pneumatic yarn finger, bolt cams control 3.Brushless motor with electronic drive 4.6 yarn finger 5.4 color yarns sequence-exchange knitting 6.Various senser for obstacles (yarn inlet, yarn cutting, defected needle, selector cutting, electric obstacle) 7. Automatic lubricant device 8.Socks separation to buttom direction 9.Adjustment of socks quality by stepping motor 10.Can weave "Y" heel part.