... selector: three/four chanel eight gradePneumatic needle selection4. Highest speed: 800 RPM,5. Different selected float covering yarns, plain weave, ... . Needle selector: four needle selectors4. Highest speed: plain weave -- 800 RPM, jacquard -- 500 RPM (subject to actual cam angel)5 ... grid mesh, yarn-added jacquard and jacquard designProduct Demonstration. : Fully Automatic Silk Stocking Making Machine