3-1/2"plain 72-168 needles Cylinder :3.5,3.75, 4, 4 ... 5 inch knit various sock Max speed: 320rpm 3-1/2"plain computerized sock knitting machine Feature: 1,One main feed plus ... five pattern feeds.2,Possibility of 13 color plus ground or the same course ... UPS can support continuous knitting.16,Graphic type LCD adopted.Plain machine can produce the following:Can knit 6 main ...