1. High speed plain sock machine 2. 56-220 needles, 6 needle selection 3. 350 pairs /day, ... sock heels/sock toes, 3D socks5. taking the double shovel-needle technology, when knitting the heel and toe, the angle is adjusted ... Needle SelectionMaximum Speed: 320RPMFully automatic 13 plating shuttles and 8 pneumatic shuttles,2Nake Spandex Socks56-220 N3Copy Double Cylinder Single Ribtop Socks56 ...