... yarn feeders changers. high production. GD-WSD,as a drugmless,double cylinder,fully electronic automatic socks knitting M/C,can knit ... .Various sensor for obstacles(yarn broken, defected needle, selector cutting, electric obstacle,.)can knot "Y" form of heel partAutomatic centrol lubrication ... :1.5kwNet weight:350kgGross weight:450kgs GD-WSD FULLY COMPUTERIZED DOUBLE CYLINDER SOCKS KNITTING MACHINE