... prolongs the service life. 3, easy to take on the tape pull round device, easy adjustment of the elastic needle plate ... , easy to operate. 2, automatic warp-lacking control device. 3, tape pull round with take up on prevention device. 4, double ... . 8, computer automatic speed control system. 9, automatic oil pump. K-400-B8 multi-function automatic jacquard knitting machine high-speed ...