1. Plain Sock Machine, 3.5'' 2. Import material for steel 3. High Speed 4. Easy Operation 5. Low cost in maintenance Company Brief ... and etc.Main Specification1. Plain & Terry sock knitting machine, 3.5″, 3.75″, 4″ ,4.5″, 5″2. Import material make to Cylinder and parts3 ... .Any colour in heel Model YX-3 1/2 inch Plain machine can produce the following:1- Various design socks2- Heel in elastic part3 ...